./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro --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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:19:48,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:19:48,650 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:19:48,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:19:48,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:19:48,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:19:48,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:19:48,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:19:48,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:19:48,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:19:48,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:19:48,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:19:48,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:19:48,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:19:48,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:19:48,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:19:48,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:19:48,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:19:48,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:19:48,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:19:48,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:19:48,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:19:48,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:19:48,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:19:48,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:19:48,751 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:19:48,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:19:48,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:19:48,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:19:48,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:19:48,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:19:48,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:19:48,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:19:48,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:19:48,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:19:48,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:19:48,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:19:48,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:19:48,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:19:48,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:19:48,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:19:48,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:19:48,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:19:48,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:19:48,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:19:48,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:19:48,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:19:48,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:19:48,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:19:48,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:19:48,818 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:19:48,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:19:48,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:19:48,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:19:48,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:19:48,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:19:48,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:19:48,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:19:48,821 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:19:48,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:19:48,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:19:48,822 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:19:48,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:19:48,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:19:48,823 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:19:48,823 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:19:48,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:19:48,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:19:48,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:19:48,825 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:19:48,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:19:48,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:19:48,825 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-11-18 20:19:49,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:19:49,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:19:49,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:19:49,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:19:49,205 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:19:49,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-18 20:19:49,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/93febb6c3/5f730507785e482d99335bdf90fd73ef/FLAGdeef561ae [2022-11-18 20:19:50,082 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:19:50,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-18 20:19:50,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/93febb6c3/5f730507785e482d99335bdf90fd73ef/FLAGdeef561ae [2022-11-18 20:19:50,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/93febb6c3/5f730507785e482d99335bdf90fd73ef [2022-11-18 20:19:50,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:19:50,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:19:50,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:19:50,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:19:50,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:19:50,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:19:50" (1/1) ... [2022-11-18 20:19:50,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef9e795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:50, skipping insertion in model container [2022-11-18 20:19:50,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:19:50" (1/1) ... [2022-11-18 20:19:50,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:19:50,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:19:51,049 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-18 20:19:51,056 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-18 20:19:51,982 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:51,983 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:51,983 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:51,984 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:51,985 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:51,998 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,002 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,005 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,008 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,012 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,014 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,015 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,015 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,435 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:19:52,436 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:19:52,438 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:19:52,440 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:19:52,441 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:19:52,442 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:19:52,443 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:19:52,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:19:52,444 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:19:52,445 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:19:52,658 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:19:52,692 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,694 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,699 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,710 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,819 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,821 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,826 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,827 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,827 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,829 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,830 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,832 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,832 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,832 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,836 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,837 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,837 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,838 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,845 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,845 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,857 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,858 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,859 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:52,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:19:52,927 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:19:52,955 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-18 20:19:52,957 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-18 20:19:53,015 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,017 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,017 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,018 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,019 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,031 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,031 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,032 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,033 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,034 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,035 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,035 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,035 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,092 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:19:53,093 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:19:53,094 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:19:53,095 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:19:53,096 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:19:53,097 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:19:53,097 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:19:53,098 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:19:53,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:19:53,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:19:53,131 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:19:53,153 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,154 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,154 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,159 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,200 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,200 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,201 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,201 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,201 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,202 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,202 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,203 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,203 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,203 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,203 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,204 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,204 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,205 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,205 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,206 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,206 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,208 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,209 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,213 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,214 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,215 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:19:53,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:19:53,575 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:19:53,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53 WrapperNode [2022-11-18 20:19:53,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:19:53,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:19:53,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:19:53,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:19:53,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,766 INFO L138 Inliner]: procedures = 697, calls = 1886, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 918 [2022-11-18 20:19:53,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:19:53,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:19:53,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:19:53,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:19:53,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,905 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:19:53,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:19:53,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:19:53,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:19:53,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (1/1) ... [2022-11-18 20:19:53,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:19:53,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:53,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:19:53,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:19:54,020 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-11-18 20:19:54,020 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-11-18 20:19:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-18 20:19:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-18 20:19:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-18 20:19:54,021 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-18 20:19:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:19:54,021 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 20:19:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 20:19:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 20:19:54,022 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 20:19:54,022 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 20:19:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 20:19:54,023 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-18 20:19:54,023 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-18 20:19:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:19:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 20:19:54,024 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 20:19:54,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 20:19:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 20:19:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:19:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:19:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:19:54,025 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-18 20:19:54,025 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-18 20:19:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-18 20:19:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-18 20:19:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:19:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:19:54,026 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 20:19:54,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 20:19:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 20:19:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 20:19:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-18 20:19:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-18 20:19:54,027 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-18 20:19:54,027 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-18 20:19:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-18 20:19:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-18 20:19:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:19:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:19:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-18 20:19:54,028 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-18 20:19:54,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:19:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:19:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:19:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-18 20:19:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-18 20:19:54,029 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 20:19:54,029 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 20:19:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 20:19:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 20:19:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:19:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:19:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:19:54,030 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 20:19:54,030 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 20:19:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:19:54,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:19:54,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:19:54,439 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:19:54,442 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:19:55,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:19:55,830 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:19:55,831 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:19:55,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:55 BoogieIcfgContainer [2022-11-18 20:19:55,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:19:55,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:19:55,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:19:55,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:19:55,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:19:50" (1/3) ... [2022-11-18 20:19:55,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df1ccf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:55, skipping insertion in model container [2022-11-18 20:19:55,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:19:53" (2/3) ... [2022-11-18 20:19:55,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6df1ccf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:19:55, skipping insertion in model container [2022-11-18 20:19:55,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:19:55" (3/3) ... [2022-11-18 20:19:55,844 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-11-18 20:19:55,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:19:55,865 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:19:55,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:19:55,936 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7675b0fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:19:55,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:19:55,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 210 states have (on average 1.2571428571428571) internal successors, (264), 213 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-18 20:19:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-18 20:19:55,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:55,959 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:19:55,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:55,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:55,965 INFO L85 PathProgramCache]: Analyzing trace with hash -690035522, now seen corresponding path program 1 times [2022-11-18 20:19:55,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:55,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459851060] [2022-11-18 20:19:55,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:55,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:19:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:19:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:19:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:19:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:19:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:19:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:19:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:19:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:19:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:19:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:19:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:19:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:19:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-11-18 20:19:56,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:56,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459851060] [2022-11-18 20:19:56,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459851060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:19:56,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:19:56,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:19:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356370951] [2022-11-18 20:19:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:19:56,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:19:56,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:19:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:19:56,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:19:56,976 INFO L87 Difference]: Start difference. First operand has 350 states, 210 states have (on average 1.2571428571428571) internal successors, (264), 213 states have internal predecessors, (264), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:19:58,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:19:58,691 INFO L93 Difference]: Finished difference Result 805 states and 1317 transitions. [2022-11-18 20:19:58,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:19:58,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-18 20:19:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:19:58,717 INFO L225 Difference]: With dead ends: 805 [2022-11-18 20:19:58,717 INFO L226 Difference]: Without dead ends: 461 [2022-11-18 20:19:58,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:19:58,737 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 139 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:19:58,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 658 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 20:19:58,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2022-11-18 20:19:58,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 343. [2022-11-18 20:19:58,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 205 states have (on average 1.2195121951219512) internal successors, (250), 207 states have internal predecessors, (250), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-18 20:19:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 474 transitions. [2022-11-18 20:19:58,875 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 474 transitions. Word has length 103 [2022-11-18 20:19:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:19:58,885 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 474 transitions. [2022-11-18 20:19:58,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:19:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 474 transitions. [2022-11-18 20:19:58,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-18 20:19:58,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:19:58,892 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:19:58,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:19:58,893 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:19:58,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:19:58,893 INFO L85 PathProgramCache]: Analyzing trace with hash -161641532, now seen corresponding path program 1 times [2022-11-18 20:19:58,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:19:58,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200897082] [2022-11-18 20:19:58,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:58,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:19:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:19:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:19:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:19:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:19:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:19:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:19:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:19:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:19:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:19:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:19:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:19:59,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:19:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:19:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:19:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:19:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:19:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-18 20:19:59,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:19:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200897082] [2022-11-18 20:19:59,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200897082] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:19:59,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010721703] [2022-11-18 20:19:59,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:19:59,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:19:59,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:19:59,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:19:59,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:20:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:00,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:20:00,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-18 20:20:00,391 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:00,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010721703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:00,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:20:00,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-18 20:20:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969069411] [2022-11-18 20:20:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:00,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:20:00,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:00,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:20:00,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:20:00,395 INFO L87 Difference]: Start difference. First operand 343 states and 474 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:20:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:00,433 INFO L93 Difference]: Finished difference Result 429 states and 584 transitions. [2022-11-18 20:20:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:20:00,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-18 20:20:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:00,436 INFO L225 Difference]: With dead ends: 429 [2022-11-18 20:20:00,437 INFO L226 Difference]: Without dead ends: 344 [2022-11-18 20:20:00,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:20:00,438 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 0 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:00,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 941 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:20:00,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-11-18 20:20:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2022-11-18 20:20:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 206 states have (on average 1.2184466019417475) internal successors, (251), 208 states have internal predecessors, (251), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-18 20:20:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 475 transitions. [2022-11-18 20:20:00,466 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 475 transitions. Word has length 103 [2022-11-18 20:20:00,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:00,466 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 475 transitions. [2022-11-18 20:20:00,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:20:00,467 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 475 transitions. [2022-11-18 20:20:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-18 20:20:00,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:00,473 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-18 20:20:00,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:00,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:00,674 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:00,674 INFO L85 PathProgramCache]: Analyzing trace with hash 2109657165, now seen corresponding path program 1 times [2022-11-18 20:20:00,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:00,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222567032] [2022-11-18 20:20:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:00,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:20:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:20:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:20:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:20:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:20:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:20:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:20:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 20:20:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-18 20:20:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:20:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:20:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:20:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:20:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:20:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:20:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:20:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-18 20:20:01,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:01,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222567032] [2022-11-18 20:20:01,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222567032] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:20:01,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697214297] [2022-11-18 20:20:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:01,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:01,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:01,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:01,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:20:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:02,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:20:02,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-18 20:20:02,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:02,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697214297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:02,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:20:02,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-11-18 20:20:02,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541554219] [2022-11-18 20:20:02,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:02,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:20:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:20:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:20:02,157 INFO L87 Difference]: Start difference. First operand 344 states and 475 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 20:20:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:02,512 INFO L93 Difference]: Finished difference Result 654 states and 914 transitions. [2022-11-18 20:20:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:20:02,513 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 122 [2022-11-18 20:20:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:02,516 INFO L225 Difference]: With dead ends: 654 [2022-11-18 20:20:02,516 INFO L226 Difference]: Without dead ends: 346 [2022-11-18 20:20:02,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:20:02,519 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 492 mSDsluCounter, 1228 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:02,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1661 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:20:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-18 20:20:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2022-11-18 20:20:02,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 207 states have (on average 1.2173913043478262) internal successors, (252), 210 states have internal predecessors, (252), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-11-18 20:20:02,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 484 transitions. [2022-11-18 20:20:02,551 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 484 transitions. Word has length 122 [2022-11-18 20:20:02,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:02,551 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 484 transitions. [2022-11-18 20:20:02,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 20:20:02,552 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 484 transitions. [2022-11-18 20:20:02,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-18 20:20:02,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:02,554 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:02,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:02,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-18 20:20:02,766 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:02,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1370525804, now seen corresponding path program 1 times [2022-11-18 20:20:02,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:02,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918185822] [2022-11-18 20:20:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:02,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:20:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 20:20:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:20:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:20:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:20:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 20:20:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:20:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:20:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:20:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:20:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-18 20:20:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-18 20:20:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 20:20:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-18 20:20:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-18 20:20:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 20:20:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-18 20:20:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-18 20:20:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2022-11-18 20:20:03,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:03,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918185822] [2022-11-18 20:20:03,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918185822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:20:03,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178008360] [2022-11-18 20:20:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:03,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:03,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:03,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:03,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:20:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:04,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:20:04,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:04,355 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-18 20:20:04,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:04,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178008360] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:04,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:20:04,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2022-11-18 20:20:04,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52280114] [2022-11-18 20:20:04,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:04,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:20:04,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:04,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:20:04,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:20:04,358 INFO L87 Difference]: Start difference. First operand 346 states and 484 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-18 20:20:04,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:04,733 INFO L93 Difference]: Finished difference Result 677 states and 969 transitions. [2022-11-18 20:20:04,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:20:04,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 130 [2022-11-18 20:20:04,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:04,738 INFO L225 Difference]: With dead ends: 677 [2022-11-18 20:20:04,738 INFO L226 Difference]: Without dead ends: 367 [2022-11-18 20:20:04,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:20:04,741 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 95 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:04,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2519 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:20:04,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-18 20:20:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 365. [2022-11-18 20:20:04,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:20:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-18 20:20:04,772 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 130 [2022-11-18 20:20:04,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:04,773 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-18 20:20:04,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 4 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-18 20:20:04,773 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-18 20:20:04,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-18 20:20:04,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:04,776 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:04,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:04,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:04,987 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:04,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:04,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2147450587, now seen corresponding path program 1 times [2022-11-18 20:20:04,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:04,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48019527] [2022-11-18 20:20:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:04,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:05,069 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:05,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098467240] [2022-11-18 20:20:05,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:05,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:05,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:05,071 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:05,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:20:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:05,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:20:05,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:05,771 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-18 20:20:05,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:05,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:05,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48019527] [2022-11-18 20:20:05,771 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:05,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098467240] [2022-11-18 20:20:05,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098467240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:05,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:05,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:20:05,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780004025] [2022-11-18 20:20:05,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:05,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:20:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:05,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:20:05,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:05,774 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 20:20:06,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:06,186 INFO L93 Difference]: Finished difference Result 702 states and 1026 transitions. [2022-11-18 20:20:06,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:20:06,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 145 [2022-11-18 20:20:06,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:06,191 INFO L225 Difference]: With dead ends: 702 [2022-11-18 20:20:06,191 INFO L226 Difference]: Without dead ends: 373 [2022-11-18 20:20:06,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:20:06,194 INFO L413 NwaCegarLoop]: 427 mSDtfsCounter, 516 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:06,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 2034 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:20:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2022-11-18 20:20:06,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 365. [2022-11-18 20:20:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:20:06,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-18 20:20:06,233 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 145 [2022-11-18 20:20:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:06,234 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-18 20:20:06,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-18 20:20:06,234 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-18 20:20:06,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-18 20:20:06,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:06,238 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:06,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:06,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:06,448 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:06,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:06,448 INFO L85 PathProgramCache]: Analyzing trace with hash -467005651, now seen corresponding path program 1 times [2022-11-18 20:20:06,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:06,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614030100] [2022-11-18 20:20:06,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:06,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:06,529 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:06,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61502664] [2022-11-18 20:20:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:06,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:06,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:06,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:06,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:20:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:07,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2527 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:20:07,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:07,299 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-18 20:20:07,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:07,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:07,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614030100] [2022-11-18 20:20:07,300 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:07,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61502664] [2022-11-18 20:20:07,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61502664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:07,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:07,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:20:07,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446856496] [2022-11-18 20:20:07,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:07,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:20:07,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:07,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:20:07,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:20:07,302 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-18 20:20:07,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:07,794 INFO L93 Difference]: Finished difference Result 728 states and 1064 transitions. [2022-11-18 20:20:07,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:20:07,795 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 161 [2022-11-18 20:20:07,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:07,801 INFO L225 Difference]: With dead ends: 728 [2022-11-18 20:20:07,801 INFO L226 Difference]: Without dead ends: 399 [2022-11-18 20:20:07,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:20:07,807 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 117 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:07,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2883 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:20:07,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-18 20:20:07,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 365. [2022-11-18 20:20:07,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 223 states have (on average 1.2286995515695067) internal successors, (274), 226 states have internal predecessors, (274), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:20:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 521 transitions. [2022-11-18 20:20:07,838 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 521 transitions. Word has length 161 [2022-11-18 20:20:07,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:07,839 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 521 transitions. [2022-11-18 20:20:07,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 5 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-18 20:20:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2022-11-18 20:20:07,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-18 20:20:07,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:07,843 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:07,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:08,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:08,053 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:08,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:08,053 INFO L85 PathProgramCache]: Analyzing trace with hash -298586752, now seen corresponding path program 1 times [2022-11-18 20:20:08,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:08,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285129830] [2022-11-18 20:20:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:08,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:08,137 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:08,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906409379] [2022-11-18 20:20:08,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:08,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:08,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:08,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:08,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:20:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:08,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2668 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:20:08,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-18 20:20:08,982 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:08,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:08,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285129830] [2022-11-18 20:20:08,982 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:08,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906409379] [2022-11-18 20:20:08,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906409379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:08,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:08,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:20:08,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163325161] [2022-11-18 20:20:08,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:08,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:20:08,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:08,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:20:08,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:20:08,987 INFO L87 Difference]: Start difference. First operand 365 states and 521 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-18 20:20:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:09,434 INFO L93 Difference]: Finished difference Result 667 states and 967 transitions. [2022-11-18 20:20:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:20:09,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 176 [2022-11-18 20:20:09,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:09,438 INFO L225 Difference]: With dead ends: 667 [2022-11-18 20:20:09,438 INFO L226 Difference]: Without dead ends: 367 [2022-11-18 20:20:09,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:20:09,441 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 533 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:09,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 2350 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:20:09,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-18 20:20:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 367. [2022-11-18 20:20:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 224 states have (on average 1.2276785714285714) internal successors, (275), 228 states have internal predecessors, (275), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-11-18 20:20:09,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 528 transitions. [2022-11-18 20:20:09,474 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 528 transitions. Word has length 176 [2022-11-18 20:20:09,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:09,474 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 528 transitions. [2022-11-18 20:20:09,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-18 20:20:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 528 transitions. [2022-11-18 20:20:09,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-18 20:20:09,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:09,478 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:09,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:09,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:09,688 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:09,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:09,689 INFO L85 PathProgramCache]: Analyzing trace with hash -186285584, now seen corresponding path program 1 times [2022-11-18 20:20:09,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:09,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942332844] [2022-11-18 20:20:09,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:09,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:09,776 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:09,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120521647] [2022-11-18 20:20:09,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:09,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:09,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:09,778 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:09,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:20:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:10,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:20:10,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-11-18 20:20:10,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:10,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:10,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942332844] [2022-11-18 20:20:10,613 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:10,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120521647] [2022-11-18 20:20:10,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120521647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:10,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:10,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:20:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982366628] [2022-11-18 20:20:10,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:10,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:20:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:10,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:20:10,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:20:10,617 INFO L87 Difference]: Start difference. First operand 367 states and 528 transitions. Second operand has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-18 20:20:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:11,256 INFO L93 Difference]: Finished difference Result 672 states and 982 transitions. [2022-11-18 20:20:11,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:20:11,257 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 199 [2022-11-18 20:20:11,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:11,260 INFO L225 Difference]: With dead ends: 672 [2022-11-18 20:20:11,260 INFO L226 Difference]: Without dead ends: 370 [2022-11-18 20:20:11,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:20:11,263 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 557 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:11,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2689 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:20:11,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-18 20:20:11,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2022-11-18 20:20:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.2266666666666666) internal successors, (276), 229 states have internal predecessors, (276), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (138), 114 states have call predecessors, (138), 113 states have call successors, (138) [2022-11-18 20:20:11,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 529 transitions. [2022-11-18 20:20:11,288 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 529 transitions. Word has length 199 [2022-11-18 20:20:11,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:11,289 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 529 transitions. [2022-11-18 20:20:11,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 5 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-18 20:20:11,289 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 529 transitions. [2022-11-18 20:20:11,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-18 20:20:11,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:11,293 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-18 20:20:11,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:11,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:11,502 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:11,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash 157414643, now seen corresponding path program 2 times [2022-11-18 20:20:11,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:11,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726873280] [2022-11-18 20:20:11,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:11,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:11,611 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:11,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418799673] [2022-11-18 20:20:11,612 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:20:11,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:11,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:11,614 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:11,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:20:12,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:20:12,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:20:12,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 20:20:12,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:12,483 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2022-11-18 20:20:12,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:12,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:12,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726873280] [2022-11-18 20:20:12,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:12,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418799673] [2022-11-18 20:20:12,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418799673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:12,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:12,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:20:12,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939204800] [2022-11-18 20:20:12,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:12,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:20:12,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:12,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:20:12,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:20:12,490 INFO L87 Difference]: Start difference. First operand 368 states and 529 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-18 20:20:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:13,124 INFO L93 Difference]: Finished difference Result 664 states and 966 transitions. [2022-11-18 20:20:13,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:20:13,125 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 230 [2022-11-18 20:20:13,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:13,129 INFO L225 Difference]: With dead ends: 664 [2022-11-18 20:20:13,129 INFO L226 Difference]: Without dead ends: 370 [2022-11-18 20:20:13,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:20:13,134 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 551 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 3029 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:13,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 3029 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:20:13,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-18 20:20:13,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-11-18 20:20:13,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 226 states have (on average 1.2256637168141593) internal successors, (277), 231 states have internal predecessors, (277), 115 states have call successors, (115), 24 states have call predecessors, (115), 27 states have return successors, (142), 114 states have call predecessors, (142), 113 states have call successors, (142) [2022-11-18 20:20:13,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 534 transitions. [2022-11-18 20:20:13,189 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 534 transitions. Word has length 230 [2022-11-18 20:20:13,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:13,190 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 534 transitions. [2022-11-18 20:20:13,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 5 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2022-11-18 20:20:13,191 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 534 transitions. [2022-11-18 20:20:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-18 20:20:13,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:13,196 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2022-11-18 20:20:13,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:13,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:13,408 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:13,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:13,408 INFO L85 PathProgramCache]: Analyzing trace with hash 447641373, now seen corresponding path program 1 times [2022-11-18 20:20:13,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:13,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391765696] [2022-11-18 20:20:13,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:13,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:13,505 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:13,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64645743] [2022-11-18 20:20:13,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:13,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:13,507 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:13,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:20:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:14,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 3454 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 20:20:14,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-18 20:20:14,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:14,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:14,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391765696] [2022-11-18 20:20:14,476 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:14,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64645743] [2022-11-18 20:20:14,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64645743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:14,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:14,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:20:14,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176410640] [2022-11-18 20:20:14,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:14,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:20:14,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:14,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:20:14,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:20:14,479 INFO L87 Difference]: Start difference. First operand 370 states and 534 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-18 20:20:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:15,298 INFO L93 Difference]: Finished difference Result 666 states and 969 transitions. [2022-11-18 20:20:15,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:20:15,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 276 [2022-11-18 20:20:15,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:15,302 INFO L225 Difference]: With dead ends: 666 [2022-11-18 20:20:15,302 INFO L226 Difference]: Without dead ends: 370 [2022-11-18 20:20:15,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:20:15,305 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 578 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:15,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 3339 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:20:15,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-11-18 20:20:15,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2022-11-18 20:20:15,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.2266666666666666) internal successors, (276), 229 states have internal predecessors, (276), 115 states have call successors, (115), 24 states have call predecessors, (115), 26 states have return successors, (136), 114 states have call predecessors, (136), 113 states have call successors, (136) [2022-11-18 20:20:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 527 transitions. [2022-11-18 20:20:15,329 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 527 transitions. Word has length 276 [2022-11-18 20:20:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:15,330 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 527 transitions. [2022-11-18 20:20:15,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 9 states have internal predecessors, (95), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-18 20:20:15,330 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 527 transitions. [2022-11-18 20:20:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 20:20:15,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:15,334 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:15,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:15,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:20:15,545 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:15,546 INFO L85 PathProgramCache]: Analyzing trace with hash -548532414, now seen corresponding path program 1 times [2022-11-18 20:20:15,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:15,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488675279] [2022-11-18 20:20:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:15,625 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:15,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625873208] [2022-11-18 20:20:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:15,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:15,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:15,627 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:15,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:20:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:16,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:20:16,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 185 proven. 3 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-18 20:20:16,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:20:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-11-18 20:20:16,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:16,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488675279] [2022-11-18 20:20:16,934 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:16,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625873208] [2022-11-18 20:20:16,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625873208] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:20:16,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:20:16,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2022-11-18 20:20:16,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051340983] [2022-11-18 20:20:16,935 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:20:16,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:20:16,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:20:16,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:20:16,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:20:16,937 INFO L87 Difference]: Start difference. First operand 368 states and 527 transitions. Second operand has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) [2022-11-18 20:20:17,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:17,447 INFO L93 Difference]: Finished difference Result 690 states and 1005 transitions. [2022-11-18 20:20:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:20:17,448 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) Word has length 218 [2022-11-18 20:20:17,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:17,455 INFO L225 Difference]: With dead ends: 690 [2022-11-18 20:20:17,455 INFO L226 Difference]: Without dead ends: 387 [2022-11-18 20:20:17,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 421 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:20:17,462 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 275 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:17,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 2846 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:20:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-18 20:20:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 384. [2022-11-18 20:20:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 239 states have (on average 1.2343096234309623) internal successors, (295), 243 states have internal predecessors, (295), 116 states have call successors, (116), 24 states have call predecessors, (116), 27 states have return successors, (143), 116 states have call predecessors, (143), 114 states have call successors, (143) [2022-11-18 20:20:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 554 transitions. [2022-11-18 20:20:17,519 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 554 transitions. Word has length 218 [2022-11-18 20:20:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:17,520 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 554 transitions. [2022-11-18 20:20:17,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 12 states have internal predecessors, (115), 9 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (45), 5 states have call predecessors, (45), 9 states have call successors, (45) [2022-11-18 20:20:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 554 transitions. [2022-11-18 20:20:17,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-18 20:20:17,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:17,526 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:17,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:17,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:20:17,736 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:17,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:17,737 INFO L85 PathProgramCache]: Analyzing trace with hash 294303300, now seen corresponding path program 2 times [2022-11-18 20:20:17,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:20:17,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618725417] [2022-11-18 20:20:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:17,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:20:17,870 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 20:20:17,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1650139651] [2022-11-18 20:20:17,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:20:17,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:20:17,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:17,872 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:20:17,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:20:18,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:20:18,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:20:19,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 3116 conjuncts, 267 conjunts are in the unsatisfiable core [2022-11-18 20:20:19,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:19,449 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:20:19,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 20:20:19,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 40 [2022-11-18 20:20:19,541 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:20:19,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-11-18 20:20:21,106 INFO L217 Elim1Store]: Index analysis took 128 ms [2022-11-18 20:20:22,794 INFO L321 Elim1Store]: treesize reduction 396, result has 50.1 percent of original size [2022-11-18 20:20:22,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 100 select indices, 100 select index equivalence classes, 4851 disjoint index pairs (out of 4950 index pairs), introduced 100 new quantified variables, introduced 99 case distinctions, treesize of input 501 treesize of output 697 [2022-11-18 20:20:39,868 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 99 dual juncts. [2022-11-18 20:20:39,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:20:39,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618725417] [2022-11-18 20:20:39,869 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 20:20:39,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1650139651] [2022-11-18 20:20:39,870 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 20:20:39,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:40,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:20:40,082 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) [2022-11-18 20:20:40,086 INFO L158 Benchmark]: Toolchain (without parser) took 49467.87ms. Allocated memory was 98.6MB in the beginning and 734.0MB in the end (delta: 635.4MB). Free memory was 58.1MB in the beginning and 259.0MB in the end (delta: -200.9MB). Peak memory consumption was 434.5MB. Max. memory is 16.1GB. [2022-11-18 20:20:40,086 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:20:40,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2955.29ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 57.7MB in the beginning and 68.0MB in the end (delta: -10.3MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2022-11-18 20:20:40,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 189.87ms. Allocated memory is still 146.8MB. Free memory was 68.0MB in the beginning and 97.2MB in the end (delta: -29.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:20:40,087 INFO L158 Benchmark]: Boogie Preprocessor took 167.09ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 89.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:20:40,091 INFO L158 Benchmark]: RCFGBuilder took 1898.19ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 88.8MB in the beginning and 127.3MB in the end (delta: -38.5MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-11-18 20:20:40,093 INFO L158 Benchmark]: TraceAbstraction took 44248.91ms. Allocated memory was 188.7MB in the beginning and 734.0MB in the end (delta: 545.3MB). Free memory was 127.3MB in the beginning and 259.0MB in the end (delta: -131.7MB). Peak memory consumption was 412.6MB. Max. memory is 16.1GB. [2022-11-18 20:20:40,095 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2955.29ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 57.7MB in the beginning and 68.0MB in the end (delta: -10.3MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 189.87ms. Allocated memory is still 146.8MB. Free memory was 68.0MB in the beginning and 97.2MB in the end (delta: -29.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 167.09ms. Allocated memory is still 146.8MB. Free memory was 97.2MB in the beginning and 89.2MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1898.19ms. Allocated memory was 146.8MB in the beginning and 188.7MB in the end (delta: 41.9MB). Free memory was 88.8MB in the beginning and 127.3MB in the end (delta: -38.5MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. * TraceAbstraction took 44248.91ms. Allocated memory was 188.7MB in the beginning and 734.0MB in the end (delta: 545.3MB). Free memory was 127.3MB in the beginning and 259.0MB in the end (delta: -131.7MB). Peak memory consumption was 412.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 20:20:40,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro --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 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:20:42,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:20:42,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:20:42,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:20:42,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:20:42,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:20:42,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:20:42,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:20:42,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:20:42,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:20:42,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:20:42,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:20:42,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:20:42,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:20:42,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:20:42,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:20:42,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:20:42,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:20:42,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:20:42,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:20:42,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:20:42,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:20:42,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:20:42,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:20:42,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:20:42,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:20:42,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:20:42,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:20:42,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:20:42,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:20:42,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:20:42,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:20:42,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:20:42,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:20:42,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:20:42,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:20:42,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:20:42,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:20:42,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:20:42,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:20:42,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:20:42,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 20:20:42,584 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:20:42,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:20:42,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:20:42,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:20:42,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:20:42,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:20:42,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:20:42,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:20:42,589 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:20:42,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:20:42,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:20:42,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:20:42,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:20:42,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:20:42,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:20:42,592 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:20:42,592 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:20:42,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:20:42,592 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:20:42,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:20:42,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:20:42,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:20:42,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:20:42,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:20:42,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:20:42,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:20:42,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:20:42,595 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:20:42,595 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:20:42,595 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:20:42,595 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:20:42,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:20:42,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:20:42,596 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 355537246d5dfb9690a92cc5d0cbf014736bcc62122f38f5559ea0fbf5331d1c [2022-11-18 20:20:43,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:20:43,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:20:43,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:20:43,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:20:43,061 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:20:43,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-18 20:20:43,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/255d8d912/69c63cf6d87c48f89a927e8278182f91/FLAGc93fe5518 [2022-11-18 20:20:43,905 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:20:43,907 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i [2022-11-18 20:20:43,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/255d8d912/69c63cf6d87c48f89a927e8278182f91/FLAGc93fe5518 [2022-11-18 20:20:43,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/data/255d8d912/69c63cf6d87c48f89a927e8278182f91 [2022-11-18 20:20:44,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:20:44,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:20:44,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:20:44,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:20:44,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:20:44,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:20:43" (1/1) ... [2022-11-18 20:20:44,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413b192d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:44, skipping insertion in model container [2022-11-18 20:20:44,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:20:43" (1/1) ... [2022-11-18 20:20:44,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:20:44,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:20:44,503 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-18 20:20:44,512 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-18 20:20:45,522 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,523 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,524 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,525 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,526 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,542 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,550 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,552 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,553 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,555 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,557 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,557 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,558 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:45,976 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:20:45,982 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:20:45,984 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:20:45,988 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:20:45,989 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:20:45,991 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:20:45,992 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:20:45,994 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:20:45,995 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:20:46,011 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:20:46,277 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:20:46,299 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,300 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,305 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,311 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,377 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,378 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,383 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,383 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,383 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,383 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,384 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,384 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,385 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,385 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,385 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,386 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,386 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,389 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,390 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,390 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,390 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,401 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,401 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,409 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,410 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,410 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:20:46,493 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 20:20:46,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:20:46,555 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-18 20:20:46,556 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-18 20:20:46,636 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,636 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,637 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,637 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,638 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,649 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,650 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,651 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,651 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,652 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,655 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,656 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,656 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,714 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:20:46,715 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:20:46,716 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:20:46,717 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:20:46,718 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:20:46,718 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:20:46,720 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:20:46,720 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:20:46,721 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:20:46,721 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:20:46,759 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:20:46,783 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,783 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,784 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,827 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,876 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,880 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,880 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,881 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,882 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,882 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,883 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,884 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,884 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,885 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,886 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,886 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,887 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,888 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,888 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,889 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,889 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,891 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,892 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,898 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,899 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,899 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:46,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:20:46,933 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:20:46,961 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4506,4519] [2022-11-18 20:20:46,962 WARN L234 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_d315618c-1cb5-44c1-8be7-a1f9f65aa100/sv-benchmarks/c/aws-c-common/aws_priority_queue_s_sift_either_harness.i[4566,4579] [2022-11-18 20:20:47,003 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,003 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,004 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,005 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,005 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,010 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,011 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,013 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,013 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,014 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,014 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,015 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,015 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,066 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:20:47,067 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:20:47,068 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:20:47,068 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:20:47,070 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:20:47,070 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:20:47,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:20:47,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:20:47,072 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:20:47,072 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:20:47,107 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:20:47,121 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,121 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,123 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,132 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,165 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,166 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,166 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,167 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,167 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,167 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,168 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,168 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,169 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,169 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,170 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,171 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,174 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,176 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,176 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,177 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,177 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,180 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,182 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,190 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,192 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,199 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:20:47,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:20:47,477 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:20:47,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47 WrapperNode [2022-11-18 20:20:47,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:20:47,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:20:47,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:20:47,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:20:47,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,693 INFO L138 Inliner]: procedures = 717, calls = 1886, calls flagged for inlining = 60, calls inlined = 15, statements flattened = 907 [2022-11-18 20:20:47,705 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:20:47,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:20:47,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:20:47,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:20:47,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,837 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:20:47,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:20:47,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:20:47,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:20:47,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (1/1) ... [2022-11-18 20:20:47,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:20:47,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:20:47,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:20:47,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:20:47,968 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_either [2022-11-18 20:20:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_either [2022-11-18 20:20:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure s_swap [2022-11-18 20:20:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure s_swap [2022-11-18 20:20:47,969 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2022-11-18 20:20:47,969 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2022-11-18 20:20:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:20:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-11-18 20:20:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-11-18 20:20:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-11-18 20:20:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-11-18 20:20:47,970 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 20:20:47,970 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 20:20:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:20:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-18 20:20:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-18 20:20:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure s_sift_up [2022-11-18 20:20:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure s_sift_up [2022-11-18 20:20:47,971 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-18 20:20:47,971 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-18 20:20:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 20:20:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 20:20:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-18 20:20:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-11-18 20:20:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:20:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:20:47,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:20:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure my_abort [2022-11-18 20:20:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure my_abort [2022-11-18 20:20:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-11-18 20:20:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-11-18 20:20:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:20:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:20:47,973 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 20:20:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 20:20:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-18 20:20:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-18 20:20:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-18 20:20:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-18 20:20:47,974 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-11-18 20:20:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-11-18 20:20:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_is_valid [2022-11-18 20:20:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_is_valid [2022-11-18 20:20:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-11-18 20:20:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-11-18 20:20:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:20:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:20:47,975 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-11-18 20:20:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-11-18 20:20:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:20:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:20:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-18 20:20:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-18 20:20:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:20:47,976 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-11-18 20:20:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-11-18 20:20:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 20:20:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 20:20:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-18 20:20:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-18 20:20:47,977 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:20:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-11-18 20:20:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 20:20:47,978 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_priority_queue_backpointer_index_valid [2022-11-18 20:20:48,343 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:20:48,347 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:20:51,359 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:20:51,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:20:51,383 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-18 20:20:51,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:20:51 BoogieIcfgContainer [2022-11-18 20:20:51,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:20:51,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:20:51,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:20:51,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:20:51,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:20:43" (1/3) ... [2022-11-18 20:20:51,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac4d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:20:51, skipping insertion in model container [2022-11-18 20:20:51,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:20:47" (2/3) ... [2022-11-18 20:20:51,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac4d1ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:20:51, skipping insertion in model container [2022-11-18 20:20:51,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:20:51" (3/3) ... [2022-11-18 20:20:51,400 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_s_sift_either_harness.i [2022-11-18 20:20:51,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:20:51,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:20:51,499 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:20:51,509 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20ec053c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:20:51,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:20:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 210 states have internal predecessors, (261), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2022-11-18 20:20:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-18 20:20:51,555 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:51,556 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:20:51,557 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:51,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:51,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1022866682, now seen corresponding path program 1 times [2022-11-18 20:20:51,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:20:51,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610333335] [2022-11-18 20:20:51,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:51,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:51,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:20:51,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:20:51,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 20:20:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:52,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:20:52,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-11-18 20:20:52,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:52,509 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:20:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610333335] [2022-11-18 20:20:52,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610333335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:52,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:52,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:20:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625525697] [2022-11-18 20:20:52,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:52,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:20:52,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:20:52,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:20:52,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:20:52,573 INFO L87 Difference]: Start difference. First operand has 347 states, 207 states have (on average 1.2608695652173914) internal successors, (261), 210 states have internal predecessors, (261), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:20:52,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:52,647 INFO L93 Difference]: Finished difference Result 681 states and 1052 transitions. [2022-11-18 20:20:52,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:20:52,649 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 103 [2022-11-18 20:20:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:52,661 INFO L225 Difference]: With dead ends: 681 [2022-11-18 20:20:52,661 INFO L226 Difference]: Without dead ends: 340 [2022-11-18 20:20:52,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:20:52,671 INFO L413 NwaCegarLoop]: 476 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, 476 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 [2022-11-18 20:20:52,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:20:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-18 20:20:52,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2022-11-18 20:20:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 202 states have (on average 1.2227722772277227) internal successors, (247), 204 states have internal predecessors, (247), 113 states have call successors, (113), 24 states have call predecessors, (113), 23 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-11-18 20:20:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 471 transitions. [2022-11-18 20:20:52,744 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 471 transitions. Word has length 103 [2022-11-18 20:20:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:52,745 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 471 transitions. [2022-11-18 20:20:52,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-18 20:20:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 471 transitions. [2022-11-18 20:20:52,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-18 20:20:52,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:52,749 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:20:52,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-18 20:20:52,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:52,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:52,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1551260672, now seen corresponding path program 1 times [2022-11-18 20:20:52,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:20:52,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933865300] [2022-11-18 20:20:52,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:52,975 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:52,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:20:52,977 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:20:53,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 20:20:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:53,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:20:53,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-18 20:20:54,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:54,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:20:54,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933865300] [2022-11-18 20:20:54,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933865300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:54,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:54,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:20:54,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633409779] [2022-11-18 20:20:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:54,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:20:54,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:20:54,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:20:54,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:20:54,083 INFO L87 Difference]: Start difference. First operand 340 states and 471 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:20:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:54,494 INFO L93 Difference]: Finished difference Result 646 states and 906 transitions. [2022-11-18 20:20:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:20:54,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2022-11-18 20:20:54,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:54,505 INFO L225 Difference]: With dead ends: 646 [2022-11-18 20:20:54,505 INFO L226 Difference]: Without dead ends: 342 [2022-11-18 20:20:54,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:54,508 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 45 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:54,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1719 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:20:54,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-18 20:20:54,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-11-18 20:20:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 203 states have (on average 1.2216748768472907) internal successors, (248), 206 states have internal predecessors, (248), 113 states have call successors, (113), 24 states have call predecessors, (113), 24 states have return successors, (119), 111 states have call predecessors, (119), 111 states have call successors, (119) [2022-11-18 20:20:54,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 480 transitions. [2022-11-18 20:20:54,550 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 480 transitions. Word has length 103 [2022-11-18 20:20:54,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:54,551 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 480 transitions. [2022-11-18 20:20:54,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-18 20:20:54,552 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 480 transitions. [2022-11-18 20:20:54,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-18 20:20:54,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:54,554 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:20:54,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:54,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:54,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:54,781 INFO L85 PathProgramCache]: Analyzing trace with hash -51291587, now seen corresponding path program 1 times [2022-11-18 20:20:54,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:20:54,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520463916] [2022-11-18 20:20:54,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:54,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:54,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:20:54,785 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:20:54,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 20:20:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:55,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 1319 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:20:55,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:55,757 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-18 20:20:55,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:55,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:20:55,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520463916] [2022-11-18 20:20:55,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [520463916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:55,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:55,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:20:55,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945345648] [2022-11-18 20:20:55,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:55,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:20:55,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:20:55,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:20:55,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:20:55,760 INFO L87 Difference]: Start difference. First operand 342 states and 480 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:20:56,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:56,694 INFO L93 Difference]: Finished difference Result 669 states and 961 transitions. [2022-11-18 20:20:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:20:56,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 111 [2022-11-18 20:20:56,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:56,699 INFO L225 Difference]: With dead ends: 669 [2022-11-18 20:20:56,699 INFO L226 Difference]: Without dead ends: 363 [2022-11-18 20:20:56,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:20:56,702 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 79 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:56,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2571 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:20:56,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2022-11-18 20:20:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 361. [2022-11-18 20:20:56,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:20:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-18 20:20:56,742 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 111 [2022-11-18 20:20:56,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:56,743 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-18 20:20:56,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-11-18 20:20:56,744 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-18 20:20:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-18 20:20:56,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:56,748 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:56,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:56,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:56,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:56,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1795067440, now seen corresponding path program 1 times [2022-11-18 20:20:56,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:20:56,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380409227] [2022-11-18 20:20:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:56,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:56,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:20:56,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:20:57,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 20:20:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:20:58,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1431 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:20:58,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:20:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-18 20:20:58,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:20:58,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:20:58,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380409227] [2022-11-18 20:20:58,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380409227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:20:58,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:20:58,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:20:58,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708520870] [2022-11-18 20:20:58,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:20:58,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:20:58,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:20:58,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:20:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:20:58,198 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-18 20:20:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:20:58,839 INFO L93 Difference]: Finished difference Result 694 states and 1018 transitions. [2022-11-18 20:20:58,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:20:58,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 126 [2022-11-18 20:20:58,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:20:58,847 INFO L225 Difference]: With dead ends: 694 [2022-11-18 20:20:58,848 INFO L226 Difference]: Without dead ends: 369 [2022-11-18 20:20:58,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:20:58,854 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 68 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2108 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:20:58,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2108 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:20:58,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-18 20:20:58,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 361. [2022-11-18 20:20:58,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:20:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-18 20:20:58,881 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 126 [2022-11-18 20:20:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:20:58,887 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-18 20:20:58,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 4 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-18 20:20:58,887 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-18 20:20:58,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-18 20:20:58,892 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:20:58,892 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:20:58,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:20:59,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:59,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:20:59,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:20:59,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1135568802, now seen corresponding path program 1 times [2022-11-18 20:20:59,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:20:59,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677648328] [2022-11-18 20:20:59,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:20:59,111 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:20:59,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:20:59,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:20:59,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-18 20:21:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:00,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:21:00,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-18 20:21:00,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:00,366 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:00,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677648328] [2022-11-18 20:21:00,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677648328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:00,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:00,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:21:00,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512909439] [2022-11-18 20:21:00,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:00,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:21:00,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:00,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:21:00,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:00,368 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-18 20:21:01,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:01,808 INFO L93 Difference]: Finished difference Result 720 states and 1056 transitions. [2022-11-18 20:21:01,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:21:01,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 142 [2022-11-18 20:21:01,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:01,812 INFO L225 Difference]: With dead ends: 720 [2022-11-18 20:21:01,813 INFO L226 Difference]: Without dead ends: 395 [2022-11-18 20:21:01,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:21:01,815 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 117 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:01,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2862 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:21:01,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-18 20:21:01,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 361. [2022-11-18 20:21:01,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.2328767123287672) internal successors, (270), 222 states have internal predecessors, (270), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:21:01,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 517 transitions. [2022-11-18 20:21:01,840 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 517 transitions. Word has length 142 [2022-11-18 20:21:01,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:01,841 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 517 transitions. [2022-11-18 20:21:01,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 8 states have internal predecessors, (72), 5 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2022-11-18 20:21:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2022-11-18 20:21:01,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-18 20:21:01,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:01,844 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:01,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:02,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:02,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:02,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:02,069 INFO L85 PathProgramCache]: Analyzing trace with hash 781855149, now seen corresponding path program 1 times [2022-11-18 20:21:02,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:02,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568373177] [2022-11-18 20:21:02,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:02,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:02,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:02,073 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:02,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-18 20:21:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:03,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1591 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:21:03,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:03,870 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-18 20:21:03,870 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:03,871 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:03,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568373177] [2022-11-18 20:21:03,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568373177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:03,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:03,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:21:03,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575619465] [2022-11-18 20:21:03,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:03,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:21:03,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:21:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:21:03,873 INFO L87 Difference]: Start difference. First operand 361 states and 517 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:21:07,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:07,762 INFO L93 Difference]: Finished difference Result 722 states and 1073 transitions. [2022-11-18 20:21:07,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:21:07,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-18 20:21:07,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:07,769 INFO L225 Difference]: With dead ends: 722 [2022-11-18 20:21:07,769 INFO L226 Difference]: Without dead ends: 397 [2022-11-18 20:21:07,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:21:07,773 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 23 mSDsluCounter, 1727 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:07,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2202 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-18 20:21:07,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2022-11-18 20:21:07,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 369. [2022-11-18 20:21:07,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 227 states have (on average 1.2334801762114538) internal successors, (280), 230 states have internal predecessors, (280), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:21:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 527 transitions. [2022-11-18 20:21:07,800 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 527 transitions. Word has length 157 [2022-11-18 20:21:07,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:07,801 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 527 transitions. [2022-11-18 20:21:07,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:21:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 527 transitions. [2022-11-18 20:21:07,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-18 20:21:07,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:07,804 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:07,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:08,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:08,027 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:08,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1974772117, now seen corresponding path program 1 times [2022-11-18 20:21:08,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:08,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920079248] [2022-11-18 20:21:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:08,029 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:08,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:08,030 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:08,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-18 20:21:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:09,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 1589 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:21:09,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:09,979 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-18 20:21:09,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:09,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:09,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920079248] [2022-11-18 20:21:09,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920079248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:09,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:09,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:21:09,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035997835] [2022-11-18 20:21:09,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:09,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:21:09,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:09,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:21:09,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:09,981 INFO L87 Difference]: Start difference. First operand 369 states and 527 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:21:15,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:15,184 INFO L93 Difference]: Finished difference Result 732 states and 1083 transitions. [2022-11-18 20:21:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:21:15,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2022-11-18 20:21:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:15,190 INFO L225 Difference]: With dead ends: 732 [2022-11-18 20:21:15,190 INFO L226 Difference]: Without dead ends: 399 [2022-11-18 20:21:15,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:15,194 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 20 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:15,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2666 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-18 20:21:15,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-18 20:21:15,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 373. [2022-11-18 20:21:15,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 231 states have (on average 1.2294372294372293) internal successors, (284), 234 states have internal predecessors, (284), 115 states have call successors, (115), 24 states have call predecessors, (115), 25 states have return successors, (132), 114 states have call predecessors, (132), 113 states have call successors, (132) [2022-11-18 20:21:15,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 531 transitions. [2022-11-18 20:21:15,226 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 531 transitions. Word has length 157 [2022-11-18 20:21:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:15,226 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 531 transitions. [2022-11-18 20:21:15,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:21:15,227 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 531 transitions. [2022-11-18 20:21:15,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-18 20:21:15,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:15,229 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:15,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:15,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:15,443 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:15,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:15,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1839114921, now seen corresponding path program 1 times [2022-11-18 20:21:15,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:15,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [803524648] [2022-11-18 20:21:15,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:15,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:15,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:15,446 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:15,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-18 20:21:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:16,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1586 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:21:16,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:19,598 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64)))))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_13|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_13| (_ bv80 64))))))) is different from true [2022-11-18 20:21:21,876 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))) (_ bv0 64)))) (exists ((|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14| (_ BitVec 64)) (|v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.base_BEFORE_CALL_14|) (bvadd |v_ULTIMATE.start_aws_priority_queue_s_sift_either_harness_~#queue~0#1.offset_BEFORE_CALL_14| (_ bv80 64))))))) is different from true [2022-11-18 20:21:22,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-11-18 20:21:22,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-18 20:21:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 4 not checked. [2022-11-18 20:21:22,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:21:25,346 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-18 20:21:25,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2022-11-18 20:21:25,388 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-11-18 20:21:25,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-11-18 20:21:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-18 20:21:25,550 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:25,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [803524648] [2022-11-18 20:21:25,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [803524648] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:21:25,551 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:21:25,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2022-11-18 20:21:25,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490636114] [2022-11-18 20:21:25,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:21:25,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:21:25,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:25,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:21:25,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=108, Unknown=2, NotChecked=42, Total=182 [2022-11-18 20:21:25,553 INFO L87 Difference]: Start difference. First operand 373 states and 531 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-18 20:21:29,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:31,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:21:34,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:34,875 INFO L93 Difference]: Finished difference Result 759 states and 1130 transitions. [2022-11-18 20:21:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:21:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 157 [2022-11-18 20:21:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:34,882 INFO L225 Difference]: With dead ends: 759 [2022-11-18 20:21:34,882 INFO L226 Difference]: Without dead ends: 448 [2022-11-18 20:21:34,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=113, Invalid=355, Unknown=2, NotChecked=82, Total=552 [2022-11-18 20:21:34,885 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 116 mSDsluCounter, 2874 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 1078 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:34,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 3330 Invalid, 1682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 590 Invalid, 2 Unknown, 1078 Unchecked, 8.1s Time] [2022-11-18 20:21:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-11-18 20:21:34,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 390. [2022-11-18 20:21:34,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 246 states have internal predecessors, (296), 117 states have call successors, (117), 26 states have call predecessors, (117), 28 states have return successors, (144), 117 states have call predecessors, (144), 115 states have call successors, (144) [2022-11-18 20:21:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 557 transitions. [2022-11-18 20:21:34,921 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 557 transitions. Word has length 157 [2022-11-18 20:21:34,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:34,921 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 557 transitions. [2022-11-18 20:21:34,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 5 states have call successors, (26), 4 states have call predecessors, (26), 5 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-18 20:21:34,922 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 557 transitions. [2022-11-18 20:21:34,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-18 20:21:34,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:34,925 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:34,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:35,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:35,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:35,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:35,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1514968390, now seen corresponding path program 1 times [2022-11-18 20:21:35,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:35,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751086142] [2022-11-18 20:21:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:35,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:35,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:35,150 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:35,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-18 20:21:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:36,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:21:36,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:36,590 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2022-11-18 20:21:36,591 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:36,591 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:36,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751086142] [2022-11-18 20:21:36,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751086142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:36,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:36,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:21:36,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853982948] [2022-11-18 20:21:36,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:36,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:21:36,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:36,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:21:36,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:21:36,595 INFO L87 Difference]: Start difference. First operand 390 states and 557 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-18 20:21:37,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:37,205 INFO L93 Difference]: Finished difference Result 704 states and 1024 transitions. [2022-11-18 20:21:37,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:21:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 159 [2022-11-18 20:21:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:37,210 INFO L225 Difference]: With dead ends: 704 [2022-11-18 20:21:37,210 INFO L226 Difference]: Without dead ends: 392 [2022-11-18 20:21:37,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:21:37,213 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 99 mSDsluCounter, 2051 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:37,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 2499 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:21:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-18 20:21:37,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-18 20:21:37,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 248 states have internal predecessors, (297), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (150), 117 states have call predecessors, (150), 115 states have call successors, (150) [2022-11-18 20:21:37,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 564 transitions. [2022-11-18 20:21:37,242 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 564 transitions. Word has length 159 [2022-11-18 20:21:37,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:37,243 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 564 transitions. [2022-11-18 20:21:37,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2022-11-18 20:21:37,244 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 564 transitions. [2022-11-18 20:21:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-18 20:21:37,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:37,246 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:37,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:37,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:37,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:37,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1747799334, now seen corresponding path program 1 times [2022-11-18 20:21:37,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:37,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220649260] [2022-11-18 20:21:37,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:37,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:37,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:37,471 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:37,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-18 20:21:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:38,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:21:38,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-18 20:21:39,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:39,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:39,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220649260] [2022-11-18 20:21:39,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220649260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:39,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:39,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:21:39,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577947246] [2022-11-18 20:21:39,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:39,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:21:39,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:39,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:21:39,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:21:39,037 INFO L87 Difference]: Start difference. First operand 392 states and 564 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-18 20:21:40,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:40,358 INFO L93 Difference]: Finished difference Result 728 states and 1065 transitions. [2022-11-18 20:21:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:21:40,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 175 [2022-11-18 20:21:40,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:40,363 INFO L225 Difference]: With dead ends: 728 [2022-11-18 20:21:40,363 INFO L226 Difference]: Without dead ends: 414 [2022-11-18 20:21:40,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:40,366 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 150 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:40,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 3233 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 20:21:40,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-18 20:21:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2022-11-18 20:21:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2022-11-18 20:21:40,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 591 transitions. [2022-11-18 20:21:40,399 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 591 transitions. Word has length 175 [2022-11-18 20:21:40,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:40,400 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 591 transitions. [2022-11-18 20:21:40,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 5 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-18 20:21:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 591 transitions. [2022-11-18 20:21:40,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-18 20:21:40,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:40,404 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:21:40,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:40,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:40,619 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:40,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1181735422, now seen corresponding path program 1 times [2022-11-18 20:21:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413625721] [2022-11-18 20:21:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:40,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:40,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:40,623 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:40,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-18 20:21:42,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:42,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:21:42,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-18 20:21:42,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:42,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:42,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413625721] [2022-11-18 20:21:42,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413625721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:42,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:42,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:21:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520602099] [2022-11-18 20:21:42,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:42,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:21:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:42,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:21:42,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:21:42,616 INFO L87 Difference]: Start difference. First operand 412 states and 591 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-18 20:21:43,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:43,644 INFO L93 Difference]: Finished difference Result 754 states and 1108 transitions. [2022-11-18 20:21:43,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:21:43,645 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) Word has length 205 [2022-11-18 20:21:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:43,649 INFO L225 Difference]: With dead ends: 754 [2022-11-18 20:21:43,649 INFO L226 Difference]: Without dead ends: 420 [2022-11-18 20:21:43,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:43,653 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 122 mSDsluCounter, 2425 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2867 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:43,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2867 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-18 20:21:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-18 20:21:43,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 412. [2022-11-18 20:21:43,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 263 states have (on average 1.2243346007604563) internal successors, (322), 266 states have internal predecessors, (322), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (151), 119 states have call predecessors, (151), 116 states have call successors, (151) [2022-11-18 20:21:43,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 591 transitions. [2022-11-18 20:21:43,684 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 591 transitions. Word has length 205 [2022-11-18 20:21:43,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:43,684 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 591 transitions. [2022-11-18 20:21:43,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 5 states have call successors, (22) [2022-11-18 20:21:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 591 transitions. [2022-11-18 20:21:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-18 20:21:43,688 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:43,689 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2022-11-18 20:21:43,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:43,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:43,903 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:43,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:43,903 INFO L85 PathProgramCache]: Analyzing trace with hash -869942382, now seen corresponding path program 1 times [2022-11-18 20:21:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:43,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302864555] [2022-11-18 20:21:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:43,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:43,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:43,907 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:43,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-18 20:21:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:45,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:21:45,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:45,976 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-18 20:21:45,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:45,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:45,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302864555] [2022-11-18 20:21:45,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302864555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:45,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:45,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:21:45,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284717516] [2022-11-18 20:21:45,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:45,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:21:45,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:45,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:21:45,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:21:45,979 INFO L87 Difference]: Start difference. First operand 412 states and 591 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-18 20:21:47,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:47,767 INFO L93 Difference]: Finished difference Result 770 states and 1124 transitions. [2022-11-18 20:21:47,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:21:47,768 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 217 [2022-11-18 20:21:47,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:47,772 INFO L225 Difference]: With dead ends: 770 [2022-11-18 20:21:47,772 INFO L226 Difference]: Without dead ends: 436 [2022-11-18 20:21:47,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:21:47,776 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 171 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:47,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 3579 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-18 20:21:47,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-11-18 20:21:47,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 390. [2022-11-18 20:21:47,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 243 states have (on average 1.2181069958847737) internal successors, (296), 246 states have internal predecessors, (296), 117 states have call successors, (117), 26 states have call predecessors, (117), 28 states have return successors, (142), 117 states have call predecessors, (142), 115 states have call successors, (142) [2022-11-18 20:21:47,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 555 transitions. [2022-11-18 20:21:47,821 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 555 transitions. Word has length 217 [2022-11-18 20:21:47,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:47,822 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 555 transitions. [2022-11-18 20:21:47,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 6 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-18 20:21:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 555 transitions. [2022-11-18 20:21:47,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-11-18 20:21:47,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:47,826 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-18 20:21:47,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:48,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:48,043 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1451940861, now seen corresponding path program 1 times [2022-11-18 20:21:48,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:48,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087920343] [2022-11-18 20:21:48,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:48,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:48,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:48,046 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:48,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-18 20:21:49,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:50,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 1956 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:21:50,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:50,351 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-18 20:21:50,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:50,351 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:50,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087920343] [2022-11-18 20:21:50,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087920343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:50,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:50,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:21:50,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717488278] [2022-11-18 20:21:50,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:50,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:21:50,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:50,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:21:50,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:21:50,354 INFO L87 Difference]: Start difference. First operand 390 states and 555 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-18 20:21:51,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:51,324 INFO L93 Difference]: Finished difference Result 696 states and 1005 transitions. [2022-11-18 20:21:51,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:21:51,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) Word has length 232 [2022-11-18 20:21:51,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:51,328 INFO L225 Difference]: With dead ends: 696 [2022-11-18 20:21:51,329 INFO L226 Difference]: Without dead ends: 392 [2022-11-18 20:21:51,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:21:51,331 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 129 mSDsluCounter, 2834 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:51,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 3278 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:21:51,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2022-11-18 20:21:51,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2022-11-18 20:21:51,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 244 states have (on average 1.2172131147540983) internal successors, (297), 248 states have internal predecessors, (297), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2022-11-18 20:21:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 560 transitions. [2022-11-18 20:21:51,360 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 560 transitions. Word has length 232 [2022-11-18 20:21:51,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:51,360 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 560 transitions. [2022-11-18 20:21:51,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (21), 4 states have call predecessors, (21), 5 states have call successors, (21) [2022-11-18 20:21:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 560 transitions. [2022-11-18 20:21:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-18 20:21:51,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:51,365 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-18 20:21:51,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:51,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:51,585 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:51,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:51,585 INFO L85 PathProgramCache]: Analyzing trace with hash 419999514, now seen corresponding path program 1 times [2022-11-18 20:21:51,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:51,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1595116405] [2022-11-18 20:21:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:51,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:51,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:51,588 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:51,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-18 20:21:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:53,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:21:53,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-11-18 20:21:53,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:53,847 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:53,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1595116405] [2022-11-18 20:21:53,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1595116405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:53,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:53,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:21:53,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851222184] [2022-11-18 20:21:53,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:53,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:21:53,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:53,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:21:53,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:53,853 INFO L87 Difference]: Start difference. First operand 392 states and 560 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 20:21:53,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:53,887 INFO L93 Difference]: Finished difference Result 517 states and 720 transitions. [2022-11-18 20:21:53,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:21:53,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 267 [2022-11-18 20:21:53,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:53,891 INFO L225 Difference]: With dead ends: 517 [2022-11-18 20:21:53,891 INFO L226 Difference]: Without dead ends: 393 [2022-11-18 20:21:53,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:21:53,892 INFO L413 NwaCegarLoop]: 470 mSDtfsCounter, 0 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:53,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:21:53,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-11-18 20:21:53,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2022-11-18 20:21:53,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 245 states have (on average 1.2163265306122448) internal successors, (298), 249 states have internal predecessors, (298), 117 states have call successors, (117), 26 states have call predecessors, (117), 29 states have return successors, (146), 117 states have call predecessors, (146), 115 states have call successors, (146) [2022-11-18 20:21:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 561 transitions. [2022-11-18 20:21:53,921 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 561 transitions. Word has length 267 [2022-11-18 20:21:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:53,922 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 561 transitions. [2022-11-18 20:21:53,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 20:21:53,922 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 561 transitions. [2022-11-18 20:21:53,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-18 20:21:53,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:53,925 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-18 20:21:53,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:54,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:54,139 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:54,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:54,139 INFO L85 PathProgramCache]: Analyzing trace with hash -539719671, now seen corresponding path program 1 times [2022-11-18 20:21:54,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:54,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761761470] [2022-11-18 20:21:54,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:54,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:54,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:54,142 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:54,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-18 20:21:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:21:56,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 2016 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:21:56,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:21:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2022-11-18 20:21:56,650 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:21:56,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:21:56,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761761470] [2022-11-18 20:21:56,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761761470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:21:56,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:21:56,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:21:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128037897] [2022-11-18 20:21:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:21:56,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:21:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:21:56,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:21:56,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:21:56,653 INFO L87 Difference]: Start difference. First operand 393 states and 561 transitions. Second operand has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-18 20:21:58,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:21:58,320 INFO L93 Difference]: Finished difference Result 721 states and 1043 transitions. [2022-11-18 20:21:58,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:21:58,321 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) Word has length 248 [2022-11-18 20:21:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:21:58,325 INFO L225 Difference]: With dead ends: 721 [2022-11-18 20:21:58,325 INFO L226 Difference]: Without dead ends: 415 [2022-11-18 20:21:58,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:21:58,327 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 179 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:21:58,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 3972 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-18 20:21:58,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-11-18 20:21:58,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 413. [2022-11-18 20:21:58,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 264 states have (on average 1.2234848484848484) internal successors, (323), 267 states have internal predecessors, (323), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2022-11-18 20:21:58,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 588 transitions. [2022-11-18 20:21:58,361 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 588 transitions. Word has length 248 [2022-11-18 20:21:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:21:58,363 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 588 transitions. [2022-11-18 20:21:58,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 6 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (23), 5 states have call predecessors, (23), 6 states have call successors, (23) [2022-11-18 20:21:58,364 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 588 transitions. [2022-11-18 20:21:58,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-18 20:21:58,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:21:58,366 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-18 20:21:58,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:21:58,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:58,583 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:21:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:21:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 563225069, now seen corresponding path program 1 times [2022-11-18 20:21:58,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:21:58,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268545181] [2022-11-18 20:21:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:21:58,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:21:58,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:21:58,586 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:21:58,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-18 20:22:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:01,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2240 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:22:01,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2022-11-18 20:22:01,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:01,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:01,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268545181] [2022-11-18 20:22:01,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268545181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:01,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:01,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:22:01,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546038738] [2022-11-18 20:22:01,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:01,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:22:01,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:01,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:22:01,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:22:01,437 INFO L87 Difference]: Start difference. First operand 413 states and 588 transitions. Second operand has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-18 20:22:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:02,772 INFO L93 Difference]: Finished difference Result 747 states and 1082 transitions. [2022-11-18 20:22:02,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:22:02,773 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 278 [2022-11-18 20:22:02,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:02,776 INFO L225 Difference]: With dead ends: 747 [2022-11-18 20:22:02,777 INFO L226 Difference]: Without dead ends: 421 [2022-11-18 20:22:02,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:22:02,780 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 152 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3623 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:02,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 3623 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 20:22:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2022-11-18 20:22:02,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2022-11-18 20:22:02,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 264 states have (on average 1.2234848484848484) internal successors, (323), 267 states have internal predecessors, (323), 118 states have call successors, (118), 26 states have call predecessors, (118), 29 states have return successors, (147), 119 states have call predecessors, (147), 116 states have call successors, (147) [2022-11-18 20:22:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 588 transitions. [2022-11-18 20:22:02,812 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 588 transitions. Word has length 278 [2022-11-18 20:22:02,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:02,812 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 588 transitions. [2022-11-18 20:22:02,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-18 20:22:02,813 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 588 transitions. [2022-11-18 20:22:02,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-18 20:22:02,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:02,815 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:02,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:03,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:03,039 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:03,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:03,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1736794708, now seen corresponding path program 1 times [2022-11-18 20:22:03,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:03,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685199178] [2022-11-18 20:22:03,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:03,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:03,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:03,042 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:03,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-18 20:22:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:05,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 1984 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:22:05,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-11-18 20:22:05,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:05,341 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:05,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685199178] [2022-11-18 20:22:05,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685199178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:05,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:05,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:22:05,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663306638] [2022-11-18 20:22:05,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:05,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:22:05,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:22:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:22:05,344 INFO L87 Difference]: Start difference. First operand 413 states and 588 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-18 20:22:06,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:06,134 INFO L93 Difference]: Finished difference Result 719 states and 1031 transitions. [2022-11-18 20:22:06,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:22:06,135 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) Word has length 250 [2022-11-18 20:22:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:06,139 INFO L225 Difference]: With dead ends: 719 [2022-11-18 20:22:06,139 INFO L226 Difference]: Without dead ends: 420 [2022-11-18 20:22:06,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:22:06,141 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 122 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:06,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 2864 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-18 20:22:06,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-18 20:22:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 415. [2022-11-18 20:22:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 265 states have (on average 1.2226415094339622) internal successors, (324), 269 states have internal predecessors, (324), 118 states have call successors, (118), 26 states have call predecessors, (118), 30 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2022-11-18 20:22:06,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 591 transitions. [2022-11-18 20:22:06,187 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 591 transitions. Word has length 250 [2022-11-18 20:22:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:06,187 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 591 transitions. [2022-11-18 20:22:06,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 5 states have call successors, (24) [2022-11-18 20:22:06,188 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 591 transitions. [2022-11-18 20:22:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-11-18 20:22:06,190 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:06,190 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:06,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:06,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:06,415 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:06,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:06,415 INFO L85 PathProgramCache]: Analyzing trace with hash 548653344, now seen corresponding path program 1 times [2022-11-18 20:22:06,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:06,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648127099] [2022-11-18 20:22:06,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:06,417 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:06,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:06,418 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:06,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-18 20:22:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:08,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:22:08,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:09,099 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-11-18 20:22:09,099 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:09,099 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:09,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648127099] [2022-11-18 20:22:09,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1648127099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:09,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:09,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:22:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238320470] [2022-11-18 20:22:09,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:09,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:22:09,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:09,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:22:09,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:22:09,102 INFO L87 Difference]: Start difference. First operand 415 states and 591 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-18 20:22:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:10,319 INFO L93 Difference]: Finished difference Result 724 states and 1038 transitions. [2022-11-18 20:22:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:22:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) Word has length 273 [2022-11-18 20:22:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:10,323 INFO L225 Difference]: With dead ends: 724 [2022-11-18 20:22:10,323 INFO L226 Difference]: Without dead ends: 423 [2022-11-18 20:22:10,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:22:10,326 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 141 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:10,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 3236 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 20:22:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-18 20:22:10,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 416. [2022-11-18 20:22:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 266 states have (on average 1.2218045112781954) internal successors, (325), 270 states have internal predecessors, (325), 118 states have call successors, (118), 26 states have call predecessors, (118), 30 states have return successors, (149), 119 states have call predecessors, (149), 116 states have call successors, (149) [2022-11-18 20:22:10,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 592 transitions. [2022-11-18 20:22:10,359 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 592 transitions. Word has length 273 [2022-11-18 20:22:10,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:10,360 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 592 transitions. [2022-11-18 20:22:10,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 6 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (25), 5 states have call predecessors, (25), 6 states have call successors, (25) [2022-11-18 20:22:10,361 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 592 transitions. [2022-11-18 20:22:10,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2022-11-18 20:22:10,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:10,364 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:10,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:10,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:10,579 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2044143037, now seen corresponding path program 1 times [2022-11-18 20:22:10,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:10,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134032920] [2022-11-18 20:22:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:10,582 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:10,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:10,583 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:10,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-18 20:22:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:13,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:22:13,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2022-11-18 20:22:13,861 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:13,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:13,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134032920] [2022-11-18 20:22:13,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134032920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:13,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:13,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:22:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760217015] [2022-11-18 20:22:13,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:13,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:22:13,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:22:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:22:13,864 INFO L87 Difference]: Start difference. First operand 416 states and 592 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-18 20:22:15,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:15,199 INFO L93 Difference]: Finished difference Result 730 states and 1046 transitions. [2022-11-18 20:22:15,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:22:15,199 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 304 [2022-11-18 20:22:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:15,205 INFO L225 Difference]: With dead ends: 730 [2022-11-18 20:22:15,206 INFO L226 Difference]: Without dead ends: 433 [2022-11-18 20:22:15,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:22:15,208 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 116 mSDsluCounter, 3254 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:15,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 3700 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-18 20:22:15,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-11-18 20:22:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 428. [2022-11-18 20:22:15,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 272 states have (on average 1.2205882352941178) internal successors, (332), 276 states have internal predecessors, (332), 123 states have call successors, (123), 27 states have call predecessors, (123), 31 states have return successors, (154), 124 states have call predecessors, (154), 121 states have call successors, (154) [2022-11-18 20:22:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 609 transitions. [2022-11-18 20:22:15,243 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 609 transitions. Word has length 304 [2022-11-18 20:22:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:15,243 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 609 transitions. [2022-11-18 20:22:15,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 8 states have internal predecessors, (80), 6 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2022-11-18 20:22:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 609 transitions. [2022-11-18 20:22:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2022-11-18 20:22:15,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:15,247 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-18 20:22:15,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:15,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:15,462 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:15,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash 369354797, now seen corresponding path program 1 times [2022-11-18 20:22:15,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:15,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818826310] [2022-11-18 20:22:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:15,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:15,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:15,466 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:15,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-18 20:22:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:18,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:22:18,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-11-18 20:22:18,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:18,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:18,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818826310] [2022-11-18 20:22:18,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818826310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:18,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:18,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:22:18,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936477933] [2022-11-18 20:22:18,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:18,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:22:18,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:22:18,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:22:18,504 INFO L87 Difference]: Start difference. First operand 428 states and 609 transitions. Second operand has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-18 20:22:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:20,613 INFO L93 Difference]: Finished difference Result 793 states and 1140 transitions. [2022-11-18 20:22:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:22:20,614 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) Word has length 310 [2022-11-18 20:22:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:20,618 INFO L225 Difference]: With dead ends: 793 [2022-11-18 20:22:20,618 INFO L226 Difference]: Without dead ends: 452 [2022-11-18 20:22:20,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:22:20,621 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 201 mSDsluCounter, 3865 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:20,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 4289 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-18 20:22:20,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-11-18 20:22:20,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 406. [2022-11-18 20:22:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 252 states have (on average 1.2142857142857142) internal successors, (306), 256 states have internal predecessors, (306), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-18 20:22:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 575 transitions. [2022-11-18 20:22:20,653 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 575 transitions. Word has length 310 [2022-11-18 20:22:20,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:20,654 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 575 transitions. [2022-11-18 20:22:20,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.181818181818182) internal successors, (123), 10 states have internal predecessors, (123), 7 states have call successors, (30), 4 states have call predecessors, (30), 4 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2022-11-18 20:22:20,654 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 575 transitions. [2022-11-18 20:22:20,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-11-18 20:22:20,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:20,657 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2022-11-18 20:22:20,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:20,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:20,879 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:20,879 INFO L85 PathProgramCache]: Analyzing trace with hash 433494193, now seen corresponding path program 1 times [2022-11-18 20:22:20,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:20,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578146339] [2022-11-18 20:22:20,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:20,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:20,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:20,884 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:20,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-18 20:22:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:24,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 2550 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:22:24,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2022-11-18 20:22:24,163 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:24,163 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:24,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578146339] [2022-11-18 20:22:24,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578146339] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:24,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:24,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:22:24,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726289757] [2022-11-18 20:22:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:24,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:22:24,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:24,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:22:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:22:24,166 INFO L87 Difference]: Start difference. First operand 406 states and 575 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-18 20:22:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:24,497 INFO L93 Difference]: Finished difference Result 744 states and 1076 transitions. [2022-11-18 20:22:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:22:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 340 [2022-11-18 20:22:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:24,501 INFO L225 Difference]: With dead ends: 744 [2022-11-18 20:22:24,501 INFO L226 Difference]: Without dead ends: 444 [2022-11-18 20:22:24,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:22:24,504 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 59 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:24,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2463 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:22:24,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-18 20:22:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 407. [2022-11-18 20:22:24,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 253 states have (on average 1.2134387351778657) internal successors, (307), 257 states have internal predecessors, (307), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-18 20:22:24,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 576 transitions. [2022-11-18 20:22:24,538 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 576 transitions. Word has length 340 [2022-11-18 20:22:24,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:24,539 INFO L495 AbstractCegarLoop]: Abstraction has 407 states and 576 transitions. [2022-11-18 20:22:24,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-18 20:22:24,539 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 576 transitions. [2022-11-18 20:22:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-11-18 20:22:24,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:24,542 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:24,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-11-18 20:22:24,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:24,771 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:24,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:24,771 INFO L85 PathProgramCache]: Analyzing trace with hash 714609585, now seen corresponding path program 1 times [2022-11-18 20:22:24,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:24,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578404174] [2022-11-18 20:22:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:24,774 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:24,777 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:24,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-18 20:22:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:32,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 2505 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:22:32,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:32,500 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:22:32,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 132 treesize of output 36 [2022-11-18 20:22:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-11-18 20:22:34,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:34,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:34,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578404174] [2022-11-18 20:22:34,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578404174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:34,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:34,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:22:34,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598498211] [2022-11-18 20:22:34,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:34,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:22:34,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:34,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:22:34,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:22:34,080 INFO L87 Difference]: Start difference. First operand 407 states and 576 transitions. Second operand has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-18 20:22:39,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:39,908 INFO L93 Difference]: Finished difference Result 742 states and 1064 transitions. [2022-11-18 20:22:39,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:22:39,911 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 334 [2022-11-18 20:22:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:39,914 INFO L225 Difference]: With dead ends: 742 [2022-11-18 20:22:39,914 INFO L226 Difference]: Without dead ends: 410 [2022-11-18 20:22:39,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:22:39,916 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 5 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:39,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2854 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 399 Invalid, 0 Unknown, 40 Unchecked, 5.4s Time] [2022-11-18 20:22:39,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-18 20:22:39,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 409. [2022-11-18 20:22:39,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 255 states have (on average 1.2117647058823529) internal successors, (309), 259 states have internal predecessors, (309), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-18 20:22:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 578 transitions. [2022-11-18 20:22:39,953 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 578 transitions. Word has length 334 [2022-11-18 20:22:39,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:39,954 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 578 transitions. [2022-11-18 20:22:39,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.428571428571429) internal successors, (108), 8 states have internal predecessors, (108), 3 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-18 20:22:39,954 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 578 transitions. [2022-11-18 20:22:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-11-18 20:22:39,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:39,957 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:40,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-11-18 20:22:40,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:40,173 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:40,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:40,173 INFO L85 PathProgramCache]: Analyzing trace with hash -427109524, now seen corresponding path program 1 times [2022-11-18 20:22:40,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:40,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123109655] [2022-11-18 20:22:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:40,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:40,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:40,176 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:40,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-18 20:22:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:42,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2295 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:22:42,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-18 20:22:42,231 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:42,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:42,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123109655] [2022-11-18 20:22:42,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123109655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:42,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:42,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:22:42,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899054518] [2022-11-18 20:22:42,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:42,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:22:42,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:42,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:22:42,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:22:42,234 INFO L87 Difference]: Start difference. First operand 409 states and 578 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-18 20:22:42,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:42,356 INFO L93 Difference]: Finished difference Result 777 states and 1134 transitions. [2022-11-18 20:22:42,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:22:42,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 309 [2022-11-18 20:22:42,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:42,360 INFO L225 Difference]: With dead ends: 777 [2022-11-18 20:22:42,360 INFO L226 Difference]: Without dead ends: 414 [2022-11-18 20:22:42,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:22:42,363 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 7 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:42,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1388 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:22:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-18 20:22:42,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2022-11-18 20:22:42,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 256 states have (on average 1.2109375) internal successors, (310), 260 states have internal predecessors, (310), 122 states have call successors, (122), 27 states have call predecessors, (122), 30 states have return successors, (147), 122 states have call predecessors, (147), 120 states have call successors, (147) [2022-11-18 20:22:42,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 579 transitions. [2022-11-18 20:22:42,398 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 579 transitions. Word has length 309 [2022-11-18 20:22:42,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:42,398 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 579 transitions. [2022-11-18 20:22:42,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-18 20:22:42,399 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 579 transitions. [2022-11-18 20:22:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-11-18 20:22:42,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:42,402 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:42,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:42,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:42,619 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:42,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:42,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1011877536, now seen corresponding path program 1 times [2022-11-18 20:22:42,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:42,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474377734] [2022-11-18 20:22:42,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:42,622 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:42,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:42,622 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:42,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-18 20:22:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:44,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 2409 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:22:44,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:44,911 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-18 20:22:44,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:44,912 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:44,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474377734] [2022-11-18 20:22:44,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474377734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:44,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:44,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 20:22:44,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980179209] [2022-11-18 20:22:44,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:44,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:22:44,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:44,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:22:44,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:22:44,914 INFO L87 Difference]: Start difference. First operand 410 states and 579 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 20:22:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:45,828 INFO L93 Difference]: Finished difference Result 785 states and 1127 transitions. [2022-11-18 20:22:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:22:45,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 324 [2022-11-18 20:22:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:45,832 INFO L225 Difference]: With dead ends: 785 [2022-11-18 20:22:45,833 INFO L226 Difference]: Without dead ends: 424 [2022-11-18 20:22:45,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:22:45,835 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 5 mSDsluCounter, 3503 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:45,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3954 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 20:22:45,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-18 20:22:45,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 417. [2022-11-18 20:22:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 261 states have (on average 1.206896551724138) internal successors, (315), 266 states have internal predecessors, (315), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (160), 123 states have call predecessors, (160), 120 states have call successors, (160) [2022-11-18 20:22:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 597 transitions. [2022-11-18 20:22:45,872 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 597 transitions. Word has length 324 [2022-11-18 20:22:45,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:45,873 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 597 transitions. [2022-11-18 20:22:45,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 3 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-18 20:22:45,873 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 597 transitions. [2022-11-18 20:22:45,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2022-11-18 20:22:45,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:45,876 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:45,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:46,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:46,095 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:46,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:46,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1848685116, now seen corresponding path program 1 times [2022-11-18 20:22:46,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:46,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39855986] [2022-11-18 20:22:46,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:46,098 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:46,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:46,099 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:46,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-18 20:22:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:48,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 2299 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 20:22:48,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 296 proven. 1 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-11-18 20:22:48,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:22:48,791 INFO L134 CoverageAnalysis]: Checked inductivity of 633 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-18 20:22:48,791 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:48,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39855986] [2022-11-18 20:22:48,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39855986] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:22:48,791 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:22:48,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 20:22:48,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019310764] [2022-11-18 20:22:48,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:22:48,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:22:48,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:48,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:22:48,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:22:48,794 INFO L87 Difference]: Start difference. First operand 417 states and 597 transitions. Second operand has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-18 20:22:49,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:22:49,224 INFO L93 Difference]: Finished difference Result 806 states and 1198 transitions. [2022-11-18 20:22:49,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:22:49,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 312 [2022-11-18 20:22:49,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:22:49,229 INFO L225 Difference]: With dead ends: 806 [2022-11-18 20:22:49,229 INFO L226 Difference]: Without dead ends: 432 [2022-11-18 20:22:49,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:22:49,232 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 33 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:22:49,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1868 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:22:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-18 20:22:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 426. [2022-11-18 20:22:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 270 states have (on average 1.211111111111111) internal successors, (327), 275 states have internal predecessors, (327), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (160), 123 states have call predecessors, (160), 120 states have call successors, (160) [2022-11-18 20:22:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 609 transitions. [2022-11-18 20:22:49,267 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 609 transitions. Word has length 312 [2022-11-18 20:22:49,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:22:49,268 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 609 transitions. [2022-11-18 20:22:49,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.125) internal successors, (121), 8 states have internal predecessors, (121), 2 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-18 20:22:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 609 transitions. [2022-11-18 20:22:49,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-18 20:22:49,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:22:49,272 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:22:49,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-18 20:22:49,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:49,495 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:22:49,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:22:49,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1031369426, now seen corresponding path program 1 times [2022-11-18 20:22:49,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:22:49,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953290846] [2022-11-18 20:22:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:22:49,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:22:49,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:22:49,499 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:22:49,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-18 20:22:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:22:57,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 2539 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:22:57,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:22:58,916 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:22:58,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 65 treesize of output 17 [2022-11-18 20:22:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2022-11-18 20:22:59,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:22:59,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:22:59,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953290846] [2022-11-18 20:22:59,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953290846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:22:59,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:22:59,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-18 20:22:59,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971342749] [2022-11-18 20:22:59,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:22:59,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 20:22:59,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:22:59,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 20:22:59,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:22:59,057 INFO L87 Difference]: Start difference. First operand 426 states and 609 transitions. Second operand has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-18 20:23:07,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:07,234 INFO L93 Difference]: Finished difference Result 876 states and 1327 transitions. [2022-11-18 20:23:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:23:07,236 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 348 [2022-11-18 20:23:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:07,241 INFO L225 Difference]: With dead ends: 876 [2022-11-18 20:23:07,241 INFO L226 Difference]: Without dead ends: 486 [2022-11-18 20:23:07,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:23:07,244 INFO L413 NwaCegarLoop]: 445 mSDtfsCounter, 115 mSDsluCounter, 4050 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:07,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 4495 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-18 20:23:07,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-18 20:23:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 437. [2022-11-18 20:23:07,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 280 states have (on average 1.2107142857142856) internal successors, (339), 284 states have internal predecessors, (339), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-18 20:23:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 634 transitions. [2022-11-18 20:23:07,286 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 634 transitions. Word has length 348 [2022-11-18 20:23:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:07,286 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 634 transitions. [2022-11-18 20:23:07,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.272727272727273) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2022-11-18 20:23:07,287 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 634 transitions. [2022-11-18 20:23:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-18 20:23:07,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:07,290 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:07,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:07,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:07,503 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:07,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:07,503 INFO L85 PathProgramCache]: Analyzing trace with hash -330607892, now seen corresponding path program 1 times [2022-11-18 20:23:07,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:07,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719528263] [2022-11-18 20:23:07,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:07,506 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:07,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:07,508 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:07,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-18 20:23:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:09,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 2535 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:23:09,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:09,872 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-11-18 20:23:09,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:09,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:09,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719528263] [2022-11-18 20:23:09,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719528263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:09,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:09,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:23:09,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530594232] [2022-11-18 20:23:09,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:09,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:23:09,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:09,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:23:09,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:09,875 INFO L87 Difference]: Start difference. First operand 437 states and 634 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:23:10,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:10,024 INFO L93 Difference]: Finished difference Result 858 states and 1281 transitions. [2022-11-18 20:23:10,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:10,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 348 [2022-11-18 20:23:10,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:10,031 INFO L225 Difference]: With dead ends: 858 [2022-11-18 20:23:10,031 INFO L226 Difference]: Without dead ends: 462 [2022-11-18 20:23:10,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:10,034 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 8 mSDsluCounter, 1442 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:10,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1932 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2022-11-18 20:23:10,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 445. [2022-11-18 20:23:10,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.2048611111111112) internal successors, (347), 292 states have internal predecessors, (347), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-18 20:23:10,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 642 transitions. [2022-11-18 20:23:10,072 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 642 transitions. Word has length 348 [2022-11-18 20:23:10,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:10,073 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 642 transitions. [2022-11-18 20:23:10,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:23:10,073 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 642 transitions. [2022-11-18 20:23:10,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-18 20:23:10,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:10,076 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:10,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:10,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:10,299 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:10,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash 55827308, now seen corresponding path program 1 times [2022-11-18 20:23:10,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:10,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1125887426] [2022-11-18 20:23:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:10,302 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:10,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:10,303 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:10,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-18 20:23:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:12,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 2309 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:23:12,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-18 20:23:12,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:12,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:12,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1125887426] [2022-11-18 20:23:12,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1125887426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:12,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:12,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:12,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080569798] [2022-11-18 20:23:12,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:12,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:23:12,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:12,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:23:12,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:23:12,408 INFO L87 Difference]: Start difference. First operand 445 states and 642 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:23:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:12,509 INFO L93 Difference]: Finished difference Result 854 states and 1297 transitions. [2022-11-18 20:23:12,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:23:12,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 318 [2022-11-18 20:23:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:12,516 INFO L225 Difference]: With dead ends: 854 [2022-11-18 20:23:12,516 INFO L226 Difference]: Without dead ends: 445 [2022-11-18 20:23:12,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:12,520 INFO L413 NwaCegarLoop]: 475 mSDtfsCounter, 7 mSDsluCounter, 930 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:12,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1405 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:12,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-18 20:23:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-18 20:23:12,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.2013888888888888) internal successors, (346), 292 states have internal predecessors, (346), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-18 20:23:12,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 641 transitions. [2022-11-18 20:23:12,558 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 641 transitions. Word has length 318 [2022-11-18 20:23:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:12,559 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 641 transitions. [2022-11-18 20:23:12,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:23:12,559 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 641 transitions. [2022-11-18 20:23:12,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-18 20:23:12,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:12,562 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:12,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:12,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:12,787 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:12,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:12,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1829843808, now seen corresponding path program 1 times [2022-11-18 20:23:12,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:12,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355735250] [2022-11-18 20:23:12,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:12,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:12,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:12,792 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:12,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-18 20:23:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:14,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 2317 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:23:14,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 267 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2022-11-18 20:23:15,211 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:15,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:15,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355735250] [2022-11-18 20:23:15,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355735250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:15,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:15,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:23:15,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227899933] [2022-11-18 20:23:15,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:15,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:23:15,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:15,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:23:15,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:23:15,214 INFO L87 Difference]: Start difference. First operand 445 states and 641 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:23:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:18,256 INFO L93 Difference]: Finished difference Result 854 states and 1295 transitions. [2022-11-18 20:23:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:18,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 322 [2022-11-18 20:23:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:18,262 INFO L225 Difference]: With dead ends: 854 [2022-11-18 20:23:18,262 INFO L226 Difference]: Without dead ends: 445 [2022-11-18 20:23:18,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:23:18,265 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 10 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:18,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1804 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-18 20:23:18,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-18 20:23:18,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2022-11-18 20:23:18,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 288 states have (on average 1.1979166666666667) internal successors, (345), 292 states have internal predecessors, (345), 122 states have call successors, (122), 27 states have call predecessors, (122), 33 states have return successors, (173), 125 states have call predecessors, (173), 120 states have call successors, (173) [2022-11-18 20:23:18,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 640 transitions. [2022-11-18 20:23:18,305 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 640 transitions. Word has length 322 [2022-11-18 20:23:18,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:18,306 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 640 transitions. [2022-11-18 20:23:18,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-18 20:23:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 640 transitions. [2022-11-18 20:23:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-11-18 20:23:18,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:18,309 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:18,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:18,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:18,523 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:18,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:18,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2130369628, now seen corresponding path program 1 times [2022-11-18 20:23:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:18,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308609120] [2022-11-18 20:23:18,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:18,525 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:18,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:18,526 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:18,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-18 20:23:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:21,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:23:21,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:21,533 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 330 proven. 3 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-11-18 20:23:21,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2022-11-18 20:23:22,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:22,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308609120] [2022-11-18 20:23:22,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308609120] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:22,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:23:22,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2022-11-18 20:23:22,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101745102] [2022-11-18 20:23:22,391 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:22,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-18 20:23:22,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:22,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-18 20:23:22,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:22,393 INFO L87 Difference]: Start difference. First operand 445 states and 640 transitions. Second operand has 16 states, 14 states have (on average 10.428571428571429) internal successors, (146), 14 states have internal predecessors, (146), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) [2022-11-18 20:23:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:24,572 INFO L93 Difference]: Finished difference Result 807 states and 1167 transitions. [2022-11-18 20:23:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:23:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.428571428571429) internal successors, (146), 14 states have internal predecessors, (146), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) Word has length 322 [2022-11-18 20:23:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:24,577 INFO L225 Difference]: With dead ends: 807 [2022-11-18 20:23:24,577 INFO L226 Difference]: Without dead ends: 479 [2022-11-18 20:23:24,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 629 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:23:24,581 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 174 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 5318 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:24,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 5318 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 20:23:24,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-18 20:23:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 468. [2022-11-18 20:23:24,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 310 states have (on average 1.2) internal successors, (372), 313 states have internal predecessors, (372), 123 states have call successors, (123), 27 states have call predecessors, (123), 33 states have return successors, (175), 127 states have call predecessors, (175), 121 states have call successors, (175) [2022-11-18 20:23:24,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 670 transitions. [2022-11-18 20:23:24,622 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 670 transitions. Word has length 322 [2022-11-18 20:23:24,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:24,623 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 670 transitions. [2022-11-18 20:23:24,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.428571428571429) internal successors, (146), 14 states have internal predecessors, (146), 11 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (50), 7 states have call predecessors, (50), 11 states have call successors, (50) [2022-11-18 20:23:24,623 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 670 transitions. [2022-11-18 20:23:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2022-11-18 20:23:24,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:24,629 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:24,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:24,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:24,843 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:24,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1045879217, now seen corresponding path program 2 times [2022-11-18 20:23:24,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:24,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126414432] [2022-11-18 20:23:24,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:24,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:24,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:24,848 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:24,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-18 20:23:29,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:23:29,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:29,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:23:29,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 363 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-11-18 20:23:30,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:30,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:30,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126414432] [2022-11-18 20:23:30,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126414432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:30,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:30,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:23:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215554440] [2022-11-18 20:23:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:30,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:23:30,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:23:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:23:30,115 INFO L87 Difference]: Start difference. First operand 468 states and 670 transitions. Second operand has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-18 20:23:32,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:32,305 INFO L93 Difference]: Finished difference Result 852 states and 1224 transitions. [2022-11-18 20:23:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:23:32,306 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) Word has length 337 [2022-11-18 20:23:32,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:32,310 INFO L225 Difference]: With dead ends: 852 [2022-11-18 20:23:32,310 INFO L226 Difference]: Without dead ends: 501 [2022-11-18 20:23:32,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:23:32,314 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 191 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 3897 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:32,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 3897 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 20:23:32,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-18 20:23:32,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 442. [2022-11-18 20:23:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 286 states have (on average 1.1993006993006994) internal successors, (343), 289 states have internal predecessors, (343), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (169), 125 states have call predecessors, (169), 120 states have call successors, (169) [2022-11-18 20:23:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 634 transitions. [2022-11-18 20:23:32,351 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 634 transitions. Word has length 337 [2022-11-18 20:23:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:32,351 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 634 transitions. [2022-11-18 20:23:32,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.1) internal successors, (121), 10 states have internal predecessors, (121), 7 states have call successors, (33), 3 states have call predecessors, (33), 4 states have return successors, (30), 6 states have call predecessors, (30), 7 states have call successors, (30) [2022-11-18 20:23:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 634 transitions. [2022-11-18 20:23:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-18 20:23:32,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:32,355 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:32,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:32,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:32,575 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:32,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1906927256, now seen corresponding path program 1 times [2022-11-18 20:23:32,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:32,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786315857] [2022-11-18 20:23:32,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:32,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:32,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:32,579 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:32,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-18 20:23:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:39,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-18 20:23:39,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:40,766 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 330 proven. 3 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2022-11-18 20:23:40,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:23:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-11-18 20:23:42,895 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:42,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786315857] [2022-11-18 20:23:42,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786315857] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:23:42,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:23:42,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 20 [2022-11-18 20:23:42,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478538123] [2022-11-18 20:23:42,896 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:23:42,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:23:42,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:23:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:23:42,904 INFO L87 Difference]: Start difference. First operand 442 states and 634 transitions. Second operand has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2022-11-18 20:23:45,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:23:51,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:51,521 INFO L93 Difference]: Finished difference Result 765 states and 1106 transitions. [2022-11-18 20:23:51,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:23:51,524 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) Word has length 354 [2022-11-18 20:23:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:51,526 INFO L225 Difference]: With dead ends: 765 [2022-11-18 20:23:51,526 INFO L226 Difference]: Without dead ends: 447 [2022-11-18 20:23:51,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-11-18 20:23:51,528 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 173 mSDsluCounter, 3629 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 4044 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 147 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:51,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 4044 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 829 Invalid, 0 Unknown, 147 Unchecked, 7.8s Time] [2022-11-18 20:23:51,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2022-11-18 20:23:51,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 442. [2022-11-18 20:23:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 286 states have (on average 1.1958041958041958) internal successors, (342), 289 states have internal predecessors, (342), 122 states have call successors, (122), 27 states have call predecessors, (122), 32 states have return successors, (169), 125 states have call predecessors, (169), 120 states have call successors, (169) [2022-11-18 20:23:51,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 633 transitions. [2022-11-18 20:23:51,565 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 633 transitions. Word has length 354 [2022-11-18 20:23:51,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:51,566 INFO L495 AbstractCegarLoop]: Abstraction has 442 states and 633 transitions. [2022-11-18 20:23:51,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 12 states have call successors, (54), 5 states have call predecessors, (54), 4 states have return successors, (49), 9 states have call predecessors, (49), 10 states have call successors, (49) [2022-11-18 20:23:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 633 transitions. [2022-11-18 20:23:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-11-18 20:23:51,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:51,570 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:51,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:51,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:51,783 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [my_abortErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:23:51,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:51,783 INFO L85 PathProgramCache]: Analyzing trace with hash -646010006, now seen corresponding path program 1 times [2022-11-18 20:23:51,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:51,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068528734] [2022-11-18 20:23:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:51,785 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:51,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:51,786 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 20:23:51,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-18 20:26:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:26:41,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2554 conjuncts, 197 conjunts are in the unsatisfiable core [2022-11-18 20:26:41,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:26:41,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-18 20:26:42,508 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5605 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_402| (_ BitVec 64))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_402|)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_402| v_ArrVal_5605)))) is different from true [2022-11-18 20:26:57,325 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5608 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_403| (_ BitVec 64))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_403|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_403| v_ArrVal_5608)))) is different from true [2022-11-18 20:27:01,693 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5608 (_ BitVec 1)) (v_ArrVal_5607 (_ BitVec 1)) (|v_aws_array_list_is_valid_~#required_size~0.base_122| (_ BitVec 64)) (v_ArrVal_5609 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_403| (_ BitVec 64))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_122| v_ArrVal_5607))) (and (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_403|)) (= (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_403| v_ArrVal_5608) |v_aws_array_list_is_valid_~#required_size~0.base_122| v_ArrVal_5609) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_122|))))) is different from true [2022-11-18 20:27:21,127 INFO L321 Elim1Store]: treesize reduction 240, result has 23.3 percent of original size [2022-11-18 20:27:21,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 7231 treesize of output 7203 [2022-11-18 20:27:39,992 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_404| (_ BitVec 64)) (v_ArrVal_5611 (_ BitVec 1))) (and (= (_ bv0 1) (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_404|)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_404| v_ArrVal_5611)))) is different from true [2022-11-18 20:28:21,560 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_405| (_ BitVec 64)) (v_ArrVal_5614 (_ BitVec 1))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_405|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_405| v_ArrVal_5614)))) is different from true [2022-11-18 20:28:25,936 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((|v___CPROVER_overflow_mult_~#c~1.base_405| (_ BitVec 64)) (v_ArrVal_5614 (_ BitVec 1))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_405|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_405| v_ArrVal_5614)))) (exists ((v_ArrVal_5616 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5616) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_5615 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5615) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 20:28:30,549 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_405| (_ BitVec 64)) (v_ArrVal_5617 (_ BitVec 1)) (v_ArrVal_5613 (_ BitVec 1)) (v_ArrVal_5614 (_ BitVec 1)) (v_ArrVal_5615 (Array (_ BitVec 64) (_ BitVec 64))) (|v_aws_array_list_is_valid_~#required_size~0.base_124| (_ BitVec 64)) (v_ArrVal_5616 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_124| v_ArrVal_5613))) (and (= (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_405| v_ArrVal_5614) |v_aws_array_list_is_valid_~#required_size~0.base_124| v_ArrVal_5617) |c_#valid|) (= (_ bv0 1) (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_124|)) (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_405|)) (= (store |c_old(#memory_$Pointer$.offset)| |v_aws_array_list_is_valid_~#required_size~0.base_124| v_ArrVal_5616) |c_#memory_$Pointer$.offset|) (= (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_124| v_ArrVal_5615) |c_#memory_$Pointer$.base|)))) is different from true [2022-11-18 20:28:30,784 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:28:30,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:28:30,894 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:28:30,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-18 20:28:30,918 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-18 20:28:30,975 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-18 20:29:02,484 WARN L233 SmtUtils]: Spent 5.50s on a formula simplification. DAG size of input: 61 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 20:29:10,231 WARN L233 SmtUtils]: Spent 5.96s on a formula simplification. DAG size of input: 356 DAG size of output: 160 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-18 20:29:10,233 INFO L321 Elim1Store]: treesize reduction 868, result has 28.9 percent of original size [2022-11-18 20:29:10,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 48 case distinctions, treesize of input 52203 treesize of output 52064 [2022-11-18 20:29:13,568 INFO L217 Elim1Store]: Index analysis took 622 ms [2022-11-18 20:29:15,464 INFO L321 Elim1Store]: treesize reduction 466, result has 23.2 percent of original size [2022-11-18 20:29:15,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 25 case distinctions, treesize of input 159 treesize of output 224 [2022-11-18 20:29:48,409 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5619 (_ BitVec 1)) (|v___CPROVER_overflow_mult_~#c~1.base_406| (_ BitVec 64))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_406|) (_ bv0 1)) (= (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_406| v_ArrVal_5619) |c_#valid|))) is different from true [2022-11-18 20:29:52,827 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5620 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5620))) (exists ((|v___CPROVER_overflow_mult_~#c~1.base_405| (_ BitVec 64)) (v_ArrVal_5614 (_ BitVec 1))) (and (= (select |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_405|) (_ bv0 1)) (= |c_#valid| (store |c_old(#valid)| |v___CPROVER_overflow_mult_~#c~1.base_405| v_ArrVal_5614)))) (exists ((v_ArrVal_5621 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5621) |c_#memory_$Pointer$.offset|))) is different from true [2022-11-18 20:30:03,872 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_405| (_ BitVec 64)) (v_ArrVal_5613 (_ BitVec 1)) (v_ArrVal_5614 (_ BitVec 1)) (v_ArrVal_5615 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_5622 (_ BitVec 1)) (|v_aws_array_list_is_valid_~#required_size~0.base_125| (_ BitVec 64)) (v_ArrVal_5616 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5613))) (and (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_405|)) (= (store |c_old(#memory_$Pointer$.offset)| |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5616) |c_#memory_$Pointer$.offset|) (= |c_#valid| (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_405| v_ArrVal_5614) |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5622)) (= (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5615) |c_#memory_$Pointer$.base|) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_125|) (_ bv0 1))))) is different from true [2022-11-18 20:30:21,651 WARN L859 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_5623 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5623))) (exists ((v_ArrVal_5624 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_5624) |c_#memory_$Pointer$.base|))) is different from true [2022-11-18 20:30:21,700 WARN L859 $PredicateComparison]: unable to prove that (exists ((|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64))) (and (exists ((v_ArrVal_5624 (Array (_ BitVec 64) (_ BitVec 64)))) (= (store |c_old(#memory_$Pointer$.base)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5624) |c_#memory_$Pointer$.base|)) (= (_ bv0 1) (select |c_old(#valid)| |aws_array_list_is_valid_~#required_size~0.base|)) (exists ((v_ArrVal_5623 (Array (_ BitVec 64) (_ BitVec 64)))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5623))))) is different from true [2022-11-18 20:30:21,884 WARN L859 $PredicateComparison]: unable to prove that (exists ((|v___CPROVER_overflow_mult_~#c~1.base_405| (_ BitVec 64)) (|aws_array_list_is_valid_~#required_size~0.base| (_ BitVec 64)) (v_ArrVal_5613 (_ BitVec 1)) (v_ArrVal_5614 (_ BitVec 1)) (v_ArrVal_5615 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_5624 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_5622 (_ BitVec 1)) (v_ArrVal_5623 (Array (_ BitVec 64) (_ BitVec 64))) (|v_aws_array_list_is_valid_~#required_size~0.base_125| (_ BitVec 64)) (v_ArrVal_5616 (Array (_ BitVec 64) (_ BitVec 64)))) (let ((.cse0 (store |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5613))) (and (= (_ bv0 1) (select .cse0 |v___CPROVER_overflow_mult_~#c~1.base_405|)) (= (store (store |c_old(#memory_$Pointer$.base)| |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5615) |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5624) |c_#memory_$Pointer$.base|) (= (store (store |c_old(#memory_$Pointer$.offset)| |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5616) |aws_array_list_is_valid_~#required_size~0.base| v_ArrVal_5623) |c_#memory_$Pointer$.offset|) (= (select (store (store .cse0 |v___CPROVER_overflow_mult_~#c~1.base_405| v_ArrVal_5614) |v_aws_array_list_is_valid_~#required_size~0.base_125| v_ArrVal_5622) |aws_array_list_is_valid_~#required_size~0.base|) (_ bv0 1)) (= (select |c_old(#valid)| |v_aws_array_list_is_valid_~#required_size~0.base_125|) (_ bv0 1))))) is different from true [2022-11-18 20:30:22,723 INFO L321 Elim1Store]: treesize reduction 38, result has 37.7 percent of original size [2022-11-18 20:30:22,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 869 treesize of output 869 [2022-11-18 20:30:22,880 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:30:22,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 20:30:22,981 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-18 20:30:22,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 27 [2022-11-18 20:30:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 433 proven. 130 refuted. 17 times theorem prover too weak. 93 trivial. 162 not checked. [2022-11-18 20:30:26,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:30:41,374 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:30:41,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068528734] [2022-11-18 20:30:41,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068528734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:30:41,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [958179556] [2022-11-18 20:30:41,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:41,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-18 20:30:41,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/cvc4 [2022-11-18 20:30:41,377 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-18 20:30:41,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d315618c-1cb5-44c1-8be7-a1f9f65aa100/bin/uautomizer-TMbwUNV5ro/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process